if the rate of change for one linear function is positive and for another is negative can they both be either increasing or decreasing?​

Answers

Answer 1

Answer:

They can never be both either increasing or decreasing.

Step-by-step explanation:

If the rate of change i.e. the slope of one linear function is positive, that means the graph of the linear function makes angle which varies between 0° to 90° with respect to the positive direction of the x-axis.

Therefore, the function must be increasing.

Again, if the rate of change i.e. the slope of one linear function is negative, that means the graph of the linear function makes angle which varies between 90° to 180° with respect to the positive direction of the x-axis.

Therefore, the function must be decreasing.

Hence, if the rate of change of one linear function is positive and for another is negative, they can never be both either increasing or decreasing. (Answer)


Related Questions

Max travel 324 miles in six hours write the unit rate

Answers

Answer:

54mph

Step-by-step explanation:

Answer:

= 54 miles per hour

Showing WorkThis is a fraction equal to

324 miles ÷ 6 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 6

324 miles

÷ 6

6 hours

÷ 6

=

54 miles

1 hour

=

54 miles

hour

= 54 miles per hour

Answer:

Step-by-step explanation:

Speed v = distance d/ time t

v = 324/6

v = 54miles/hr


Car Survey in a survey of 3,200 people who owned a certain type of car, 2,240 said they would buy
that type of car again. What percent of the people surveyed were satisfied with the car?

Answers

Answer:

30%

Step-by-step explanation:

1.) subtract 3200 and 2240. Since you need to find the amount of people who were satisfied with the car.

2.) divide 960 and 3200. this is because you need to find the percent of people who were satisfied with the car.

Answer: 30%

The percentage satisfied with the purchase is 30%

The percentage who were satisfied can be calculated thus :

(Difference/ Number surveyed ) × 100%

Difference = 3200 - 2240 = 960

Now we have :

(960 / 3200) × 100%

= 0.3 × 100%

= 30%

Hence, percentage who were satisfied is 30%

Given the diagram below, what is sin (30°) ?

Answers

Answer:

A.  1/2.

Step-by-step explanation:

The ratio of the sides of a 30-60-90 triangle  is 2:1:√3   where  2 is the hypotenuse. 1 is the shortest leg and √3 is the longest leg.

In the diagram we see that the longest leg is opposite the 60 degree angle.

So the longest leg is 3.5√x and  the shortest leg ( from applying the ratios) = 3.5√x / √3.

and the hypotenuse is  2 *  3.5√x / √3    (using the ratios again).

So sin  30 = shortest leg / hypotenuse =  3.5√x / √3 /  2 *  3.5√x / √3

= 1/2.

What is the equation of a line that contains the points (5.0) and (5,-2)?
x = 5
x = 0
y=0
y = 5

Answers

Answer:

C) y=0

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2-0)/(5-5)

m=-2/0

m=0

y-y1=m(x-x1)

y-0=0(x-5)

y-0=0

y=0+0

y=0

Answer:

x=5

Step-by-step explanation:

a

If 4 bushels of oats weigh 112 kg, how much do 8.5 bushels of oats weigh?

Answers

Answer: 8.5 bushels weighs 238kg.

Explanation: 112/4 = 28
Each bushel weighs 28kg.
28 x 8.5 = 238kg.

Help me this is worth a lot of points

Answers

Answer:

Area of ABCD = 100m²

Step-by-step explanation:

Area of a square is the square of the side.

A = s²

A = (10m)² = 10²m² = 100m²

Answer:

Area of ABCD = 100m²

Step-by-step explanation:

Which decimals are rational numbers? Select all that apply
A. 72/100
B. π
C. 1 1/3
D. 8/526
E. 0.212212221...
F. 5/9

Answers

PLEASE MARK BRAINLIEST!

Answer:

Your answers are A, C, D, F

Step-by-step explanation:

Fractions are always rational.

A --> this is rational because it can be represented by a fraction.

B --> this is irrational because it cannot be represented by a fraction

C --> 1 1/3 is rational because it can be represented as a fraction

D --> 8/526 is rational because it can be represented as a fraction

E --> this is irrational because it cannot be represented by a fraction

F --> this is rational because it can be represented as a fraction

I hope this helps!

Final answer:

Rational numbers can be expressed as the ratio of two integers. From the list provided, the rational numbers are 72/100 (A), 1 1/3 (C), 8/526 (D), and 5/9 (F). The number π (B) is irrational, and it is unclear if 0.212212221... (E) is a repeating decimal, so it cannot be confirmed as rational without additional information.

Explanation:

Rational numbers are numbers that can be written as a fraction, where both the numerator and the denominator are integers and the denominator is not zero.

This includes both terminating and repeating decimals.

A. 72/100 is a rational number because it can be simplified to the fraction 18/25, which is a ratio of two integers.B. π (pi) is not a rational number because it is an irrational number; it cannot be expressed as a fraction of two integers.C. 1 1/3 is a rational number as it is equivalent to the fraction 4/3, a ratio of two integers.D. 8/526 is a rational number as it is already in fraction form with two integers.E. 0.212212221..., if this is a non-terminating, non-repeating decimal, it would be irrational; however, if the pattern repeats at some point, it would be rational. Since the pattern is not explicitly stated as repeating, we cannot assume it is rational.F. 5/9 is a rational number because it is a fraction that represents a ratio of two integers.

Thus, the rational numbers from the list provided are A, C, D, and F.

A circle has a radius of 30cm what is the area

Answers

r = 30 cm

formula: A = πr²

A = πr²

A = π30²

A = 900π

if π = 3.14, then the answer is 2,826 cm

if π is not defined, the answer is 2,827.43 cm

Teresa stated that the heights of the students in her class were not a function of their ages. Which reasoning could justify Teresa’s statement?

Answers

Given age, one can not determine the height. In another words, students with same age may have different height

Answer: Two students are the same age but have different heights.

I don’t understand question 49 someone pls explain.

Answers

Answer:

Below in bold.

Step-by-step explanation:

a, That would be

m = 7 + 8(d - 1)    where m = the no. of minutes and d = the day number.

b.   On day 9  the number of minutes m =  7 + 8(9 - 1)

= 7 + 64

= 71.

find the unit cost of each of the following to determine which is the better value: 8 CDs for $56.99 or 3 CDs for $22.99​

Answers

Answer:

8 CD's for $56.99 is better value than 3 CD's for $22.99.

Step-by-step explanation:

We are given that,

Cost of 8 CD's is $56.99 and cost of 3 CD's is $22.99.

Now, to determine which is the better value, we will find the cost of 1 CD in both the cases. The case which will give cost per CD less will represent the better value.

CASE 1 :

Cost of 8 CD's = $ 56.99

So, cost of 1 CD = $ 56.99 ÷ 8 = $ 7.12  (approx.)

CASE 2 :

Cost of 3 CD's = $ 22.99

∴ Cost of 1 CD = $ 22.99 ÷ 3 = $ 7.66 (Approx.)

So, the CD's are available in cheaper rates in the first case in comparison to second case.

So, 8 CD's for $56.99 is better value than 3 CD's for $22.99.

Answer:

The unit cost of 8 CDs for $56.99 is $7.12 and the unit cost of 3 CDs for $22.99 is $7.66.

And the better value is of 8 CDs for $56.99.

Step-by-step explanation:

Given:

8 CDs for $56.99 or 3 CDs for $22.99.

Now, to find the unit cost to determine which is better value.

By using unitary method we find it:

So, to get the unit cost of 8 CDs for $56.99:

If 8 CDs cost $56.99.

Then, 1 CD cost = [tex]56.99\div 8=\$7.12.[/tex]

Thus, the unit cost = $7.12.

Now, to get the unit cost of 3 CDs for $22.99:

If 3 CDs cost $22.99.

Then, 1 CD cost = [tex]22.99\div 3=\$7.66.[/tex]

Thus, the unit cost = $7.66.

Now, on comparing we determine the better value is of 8 CDs for $56.99.

Therefore, the unit cost of 8 CDs for $56.99 is $7.12 and the unit cost of 3 CDs for $22.99 is $7.66.

And the better value is of 8 CDs for $56.99.

Maya has $2740 of play money
Emily has $3560 of play money. Maya gives some money to Emily. If Emily ends up with 4 times Maya amount. How much money does each girl has in the end

Answers

Answer:

Maya = $1260

Emily = $5040

Step-by-step explanation:

2740+3560 =6300

M + (4M) = 6300

5M=6300

M=6300/5

M=1260

E=5040

Maya has $1260, and Emily has $5040 in the end. Maya gives $1480 to Emily.

How the amount of money was calculated

Maya has $2740, and Emily has $3560.

We're looking for the amount Maya gives to Emily so that Emily ends up with 4 times as much as Maya.

Let M be the amount Maya gives to Emily.

Emily ends up with 4 times Maya's amount:

Emily's amount = 4 * Maya's amount

$3560 + M = 4 * ($2740 - 4M

Simplify:

$3560 + M = $10960 - 4M

$3560 + M + 4M = $10960

5M = $10960 - $3560

5M = $7400

Divide by 5 to solve for M:

M = $7400 / 5

M = $1480

So, Maya gives $1480 to Emily.

To find how much each girl has in the end:

Maya: $2740 - $1480 = $1260

Emily: $3560 + $1480 = $5040

Maya has $1260, and Emily has $5040 in the end.

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Write a fraction greater than 1 for the parts that are shaded. + a mixed #. Please I need an answer for all of them




Answers

Answer:

2. 7/4 and 1  3/4

3. 5/3 and 1 2/3

4. 14/5 and 2 4/5

5.  21/6 and 3 3/6 (Lowest terms=3  1/2)

6. 20/8 and 2 4/8 (lowest terms= 2 1/2)

Hope it helped!!

The circumference of the Astrodome in Houston, Texas is 2,230 ft. Find the area of the astrodome and explain how you did this using the words area, circumference and radius. (π = 3.14)

Answers

Answer:

The radius of Astrodome is 355.09 foot,

The Area of Astrodome is 395919.146 square foot .

Step-by-step explanation:

Given as :

The circumference of Astrodome = 2230 foot

∵ The circumference of circular shape = 2 × [tex]\pi[/tex] × radius

where  [tex]\pi[/tex] = 3.14

So, The circumference of Astrodome = 2 × [tex]\pi[/tex] × radius

Or, 2230 foot = 2 × 3.14 × radius

Or, 2230 foot = 6.28 × radius

∴ radius = [tex]\dfrac{2230}{6.28}[/tex]

I.e radius = 355.09 foot

Now,

∵The area of circular shape = [tex]\pi[/tex] × radius²

So, The area of Astrodome = [tex]\pi[/tex] × radius²

Or, The area of Astrodome = 3.14 × radius²

Put the value of radius = 355.09 foot

So , The area of Astrodome = 3.14 × (355.09)²

or, The area of Astrodome = 3.14 × 126088.9

∴  The area of Astrodome = 395919.146 square foot

Hence , The radius of Astrodome is 355.09 foot, and The Area of Astrodome is 395919.146 square foot . Answer

Each cube in this rectangular prism is 1 cm3.What is the volume of the rectangular prism?

A.40 cm3

B.20 cm3

C.48 cm3

D.9 cm3

Answers

The volume of the rectangular prism is b. 20 cubic cm

What is the volume of the rectangular prism?

From the question, we have the following parameters that can be used in our computation:

the rectangular prism

Where, we have

Length = 2

Height = 2

Width = 5

The volume of the rectangular prism is the product of the dimensions

So, we have

Volume = 2 * 2 * 5

Volume = 20 cubic cm

Hence, the volume of the rectangular prism is b. 20 cubic cm

Isaac purchased a house for $179,300,00. Every year, Isaac makes improvements so that the value of the house goes up by 4%.
Which of the following equations can be used to determine the number of years after purchase, that the value of Isaac's house will
be equal to 5197.230.002

Answers

Answer:

The number of years in which house value goes up is 145 years .

Step-by-step explanation:

Given as :

The initial purchased value of the house = p = $179,300,00

The value of house goes up every years at the rate = r = 4%

Let The number of years in which house value goes up = t  years

The value of the house after t years = $A = $5197,230,002

Now, According to question

The value of the house after t years = The initial purchased value of the house × [tex](1+\dfrac{\textrm rate}{100})^{\textrm time}[/tex]

I.e A = $p × [tex](1+\dfrac{\textrm r}{100})^{\textrm t}[/tex]

Or,$5197,230,002 = $17930000 × [tex](1+\dfrac{\textrm 4}{100})^{\textrm t}[/tex]

Or, [tex]\dfrac{5197,230,002}{179,300,00}[/tex] = [tex](1+\dfrac{\textrm 4}{100})^{\textrm t}[/tex]

Or, 289.86 = [tex](1.04)^{t}[/tex]

Now, taking Log both side

So, [tex]Log_{10}[/tex]289.86 = [tex]Log_{10}[/tex] [tex](1.04)^{t}[/tex]

or, 2.462 = t ×  [tex]Log_{10}1.04

or, 2.462 = t × 0.01703

∴ t = [tex]\dfrac{2.462}{0.01703}[/tex]

I.e t = 144.56 ≈ 145

So, Number of years = t = 145 years

Hence The number of years in which house value goes up is 145 years . Answer

To determine the number of years it will take for the value of Isaac's house to reach $5,197,230.002 with an annual appreciation rate of 4%, use the compound interest formula. Solving for the number of years, the approximate result is 84 years.

Isaac purchased a house for $179,300. Every year, the value of the house increases by 4%. To determine the number of years after purchase that the value of Isaac's house will reach $5,197,230.002, we can use the formula for compound interest:

FV = PV × (1 + r)ⁿ

FV is the future value of the house, $5,197,230.002.PV is the present value or the initial value of the house, $179,300.r is the annual increase rate, 4% or 0.04.n is the number of years.

We need to solve for n in the equation:  

$5,197,230.002 = $179,300 × (1 + 0.04)ⁿ

First, isolate the exponential expression:

(1 + 0.04)ⁿ = $5,197,230.002 / $179,300(1.04)ⁿ ≈ 29

Next, apply the natural logarithm to both sides to solve for n:

ln[(1.04)n] = ln(29)n × ln(1.04) = ln(29)n = ln(29) / ln(1.04)n ≈ 83.95 years

So, the value of Isaac's house will reach $5,197,230.002 approximately 84 years after purchase.

What is the greatest common factor of 9 and 5

Answers

Answer:45

Step-by-step explanation:5 10 15 20 25 30 35 40 45

9 18 27 36 45

The greatest common factor of the number 9 and 5 is 1.

To find the greatest common factor (GCF) of 9 and 5, determine the largest number that evenly divides both 9 and 5.

The factors of 9 are 1, 3, and 9.

The factors of 5 are 1 and 5.

From these lists, the only common factor of 9 and 5 is 1.

Therefore, the greatest common factor of 9 and 5 is 1.

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Find the solutions to x2 = 18.

Answers

Answer:

6^3

Step-by-step explanation:

Ape-x

The solutions are [tex]\(x = 3\sqrt{2}\)[/tex] and [tex]\(x = -3\sqrt{2}\)[/tex]. Each represents a square root of 18.

To find the solutions to [tex]\( x^2 = 18 \)[/tex], you need to take the square root of both sides of the equation.

[tex]\[ x = \pm \sqrt{18} \][/tex]

[tex]\[ x = \pm 3\sqrt{2} \][/tex]

So, the solutions to [tex]\( x^2 = 18 \)[/tex] are [tex]\( x = 3\sqrt{2} \)[/tex] and [tex]\( x = -3\sqrt{2} \).[/tex]

If a single point satisfies the equations of two lines, the point is on both lines?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

Yes. This is called a solution of the equations and is the intersection point.

which equation could represent the area of a square as a function of a side A: A(s)=2s B: A(s)=4s C: A(s)= s2

Answers

Answer:

[tex]A(s)=s^2[/tex]

Step-by-step explanation:

we know that

The square  is a regular polygon that has four right angles and four parallel and congruent sides.

The area of a square is equal to the length side squared

Let

s ----> the length side of the square

we have that

[tex]A(s)=s^2[/tex]

Which system is equivalent to
{y=-2x2
y=x-2}

Answers

Answer:

OPTION C: y = -2y² - 8y - 8

                    x = y + 2

Step-by-step explanation:

The given equations are:

[tex]$ y = -2x^2 \hspace{20mm} \hdots (1) $[/tex]

[tex]$ y = x - 2 \hspace{20mm} \hdots (2) $[/tex]

From Equation (2), we get:

x = y + 2

Substituting this value of x in Equation (1), we get:

y = -2(y + 2)²

Expanding it in [tex]$ (a + b)^2  = a^2 + 2ab + b^2 $[/tex], we get:

y = -2{y² + 4y + 4}

y = - 2y² - 8y - 8

Therefore, OPTION C is the answer.

Answer: C on edge 2022

Step-by-step explanation:

if wrong i’m gay and Bidens a good president *they almost all suck anyways*

let this be an easy 5 points for your brainly account all is ask for in return is a "thank you"​

Answers

Answer:

deze nuts thanks u

Step-by-step explanation:

Answer: thank

Step-by-step explanation:

you

Plz I need help with geometry homework FIND THE ANGLES

Answers

Answer:

a = 36°b = 36°c = 72°d = 72°e = 108°f = 16°g = 74°h = 70°

Step-by-step explanation:

You are expected to know and make use of the following relations:

vertical angles are congruentangles of a linear pair are supplementaryangles of a triangle sum to 180°alternate interior angles are congruent (at parallel lines)corresponding angles are congruent (at parallel lines)acute angles of a right triangle are complementarybase angles of an isosceles triangle are congruent

__

For this problem, it isn't always easiest to work the questions in order. It is best to start with the angles easiest to find from those given.

  b and 144° are a linear pair, so b = 180° -144° = 36°

  a and b are alternate interior angles, so a = b = 36°

  2d and 144° are corresponding angles, so d = 144°/2 = 72°

  e is the apex angle of an isosceles triangle with base angles 36°, so is 180° -2(36°) = 108° = e

  f and 164° are a linear pair, so f = 180° -164° = 16°

  g and f are complementary, so g = 90° -16° = 74°

  g+h is a vertical angle with 144°, so is congruent to that. h = 144° -74° = 70°

  c is the base angle of an isosceles triangle with b as the vertex angle. That means c = (180° -36°)/2 = 72°

You moved within a short walking distance to work and you no longer need to spend the $20 per week budgeted for bus
fare. Considering this, what is your new weekly budget surplus if your previous surplus was $175?
a) $30
b) $66
Oc) $120
O d) $195

Answers

It would be 195 because if you add 175 and 20 u get 195
D) 195

you used to have $175 extra a week and now you have $20 more. 175+20= 195

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. A cone is used to fill the cylinder with water. The radius of
the cone's base is 5 centimeters, and its height is 10 centimeters.
The number of times one needs to use the completely filled cone to completely fill the cylinder with water is
Reset
Next

Answers

Answer: 24times

Step-by-step explanation:

Formula for the volume of a cylinder                         = πr²h

Volume of the cone                                                      = 1/3πr²h

Therefore the volume of the cylinder               = 22/7 x 10² x 20

                                                                     = 22/7 x 10 x 10 x 20

                                                                                = 6285.71cm³

Therefore , the volume of the cone             = 1/3 x 22/7 x 5² x 10

                                                                     = 1/3 x 22/7 x 5 x 5 10

                                                                                  = 5500/21

                                                                                  = 261.9cm³

Therefore the number of times needed to use the completely filled cone to completely filled the cylinder with water                                                                                                                       = 6285.71/261.9

                                                                                = 24times.

                                                                                       

Find the area of the trapezoid by decomposing it into other shapes. A) 56 cm2 B) 60 cm2 C) 64 cm2 D) 72 cm2 Eli

Answers

Answer:

Option C. [tex]64\ cm^2[/tex]

Step-by-step explanation:

see the attached figure N 1 to better understand the problem

we know that

The trapezoid can be decomposed into two right triangles and a rectangle

see the attached figure N 2

so

The area of the trapezoid is equal to the area of two right triangles and one rectangle

The area of trapezoid is equal to

[tex]A=\frac{1}{2}(5)(4)+(12)(4)+\frac{1}{2}(3)(4)[/tex]

[tex]A=10+48+6[/tex]

[tex]A=64\ cm^2[/tex]

The denarius was a unit of currency in ancient Rome. Suppose it costs the Roman government 101010 denarius per day to support 333 legionaries and 333 archers. It only costs 333 denarius per day to support one legionary and one archer. Use a system of linear equations in two variables.

Can we solve for a unique cost for each soldier?

Answers

Answer:

The system cannot be solved by a unique cost for each soldier

Step-by-step explanation:

The correct question is

The denarius was a unit of currency in ancient Rome. Suppose it costs the Roman government 10 denarius per day to support 3 legionaries and 3 archers. It only costs 3 denarius per day to support one legionary and one archer. Use a system of linear equations in two variables.

Can we solve for a unique cost for each soldier?

Let

x-------> the cost of a legionary per day

y-------> the cost of an archer per day

we know that

[tex]3x+3y=10[/tex]

isolate the variable y

subtract 3x both sides

[tex]3y=10-3x[/tex]

Divide by 3 both sides

[tex]y=-x+\frac{10}{3}[/tex] ------> equation A

[tex]x+y=3[/tex]

isolate the variable y

subtract x both sides

[tex]y=-x+3[/tex] ------> equation B

Remember , If two lines are parallel, then their slopes are equal

In this problem Line A and Line B are parallel lines, because their slopes are equal.

we know that that the solution of the system of equations is the intersection point both graphs

If the lines are parallel, then the lines don't intersect

see the attached figure to better understand the problem

therefore

The system has no solutions (Is a inconsistent system)

At a local food store a child stole $500 from the shopkeeper's cash register to purchase goods in the store. The items the child purchased total $350 which he paid using the money he stole and received change of $150. How much money in total did the shopkeeper lose

Answers

Answer:

$650

Step-by-step explanation:

the child stole $500 then the shopkeeper gave him change of $150 that equals to the amount of money the shopkeeper lost.

working....

$500+$150=$600

Final answer:

The shopkeeper lost a total of $500 due to the child stealing $500, buying items worth $350, and receiving $150 in change.

Explanation:

The question involves determining the total amount of money the shopkeeper lost due to a theft. When the child stole $500 from the cash register and then used some of this money to buy items worth $350, the shopkeeper effectively lost that amount due to the child not legitimately paying for the goods. Furthermore, the child received $150 in change when they used the stolen money to pay for the items. Therefore, the total money lost by the shopkeeper is the sum of the cost of the goods taken and the change given out, which amounts to $350 + $150, equating to a total loss of $500.

18. Ten students from a school appear in one or more subjects for an inter school

Answers

Answer:

Step-by-step explanation:

(G n m) = [Max, Anael]

(G u S) = [Acel, Action, Anael, Max, Carl, Dario, Carlin, Kia, Barak]

The students appearing for General Knowledge (G) are Acel, Acton, Anael, Max, Carl, and Dario and the students appearing for Math (M) are Barek, Bay, Max, Kai, Anael, and Carlin and the students appearing for Science (S) are Carlin, Acton, Anael, Kai, Dario, and Barek.

To determine the students in each subject set, we need to carefully analyze the table. Let's start with the General Knowledge (G) set. The students listed under General Knowledge are Acel, Acton, Anael, Max, Carl, and Dario.

Next, we move on to the Math (M) set. The students listed for Math are Barek, Bay, Max, Kai, Anael, and Carlin.

Lastly, we look at the Science (S) set. The students listed for Science are Carlin, Acton, Anael, Kai, Dario, and Barek.

To find the intersection students in each subject set, we simply extract the names listed under each subject. When a student appears in more than one subject, we include them in the respective sets accordingly.

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Use the elimination method to solve the system of equations. Choose the
correct ordered pair.
7x+3y= 30
-2x+3y= 3
ОА. (3, 5)
ОВ. (3, 3)
Ос. (6, 5)
D. (6, 3)

Answers

B (3,3) is the answer

Explanation:

7x+3y=30
-2+3y=3

Choose a variable to eliminate (We’ll choose Y)

(7x+3y=30) -> 7x+3y=30
(-2x+3y=3) -1 -> 2x+-3y=-3

The -3y camels the other 3y, combine the equations

9x=27

Divide both sides by 9

9x/9 = 27/9
x = 3

Back to 7x+3y= 30
Substitute the x with 3

7(3)+3y= 30
21+3y= 30

Move the constant to the other side

21+3y=30
-21 -21

3y=9

Divide both sides by 3

3y/3 = 9/3

y = 3
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