Y 7 8y 9y 3 4y 2 3

Asked by maham237 @ in Mathematics viewed by 249 People

Use the expression below to answer the question. 20 + 8y – 9y – 21 Which expression is equivalent? A. 2(10 + 4y – 7y – 19) B. 2(10 + 4y) – 3(3y – 7) C. 4(5 + 2y – 5y – 17) D. 4(5 + 2y) – 3(3y + 7)

Answered by maham237 @


Option D: 4(5+2y)-3(3y+7) is the correct answer.

Explanation:

The expression is $20+8 y-9 y-21$

Solving the expression, we have,

-y-1

Now, we need to find an expression equivalent to $20+8 y-9 y-21$

Option A: 2(10+4y-7y-19)

Solving the expression, we have,

$\begin{aligned} 2(10+4 y-7 y-19) &=2(-9-3 y) \\ &=-18 y-6 y \end{aligned}$

From the result, the expression 2(10+4y-7y-19) is not equivalent to $20+8 y-9 y-21$

Option A is not the correct answer.

Option B: $2(10+4 y)-3(3 y-7)$

Solving the expression, we have,

$\begin{aligned} 2(10+4 y)-3(3 y-7) &=20+8 y-9 y+21 \\ &=-y+41 \end{aligned}$

From the result, the expression $2(10+4 y)-3(3 y-7)$ is not equivalent to $20+8 y-9 y-21$

Option B is not the correct answer.

Option C: 4(5+2y-5y-17)

Solving the expression, we have,

$\begin{aligned} 4(5+2 y-5 y-17) &=20+8 y-20 y-68 \\ &=-12 y-48 \end{aligned}$

From the result, the expression 4(5+2y-5y-17) is not equivalent to $20+8 y-9 y-21$

Option C is not the correct answer.

Option D: $4(5+2 y)-3(3 y+7)$

Solving the expression, we have,

$\begin{aligned} 4(5+2 y)-3(3 y+7) &=20+8 y-9 y-21 \\ &=-y-1 \end{aligned}$

From the result, the expression $4(5+2 y)-3(3 y+7)$ is equivalent to $20+8 y-9 y-21$

Option D is not the correct answer.


Similar Questions

Y 7 3 1 3y 2 5 solve and check

Asked by admin @ in Math viewed by 423 persons

Please give me answer of y+7/3=1+3y-2/5

7 2 0 7 8 4 3 next sequence

Asked by admin @ in Math viewed by 368 persons

IQ test -- What is the next number in sequence 7, 2 , 0, 7, 8 , 4 , 3, ?

7 2 0 7 8 4 3 next number

Asked by admin @ in Math viewed by 381 persons

IQ test -- What is the next number in sequence 7, 2 , 0, 7, 8 , 4 , 3, ?

X 7 y 3 5 x 2 y 9 6

Asked by admin @ in Math viewed by 792 persons

X/7+y/3=5;x/2-y/9=6 by subsitution method

1 x 1 y 1 z 2 3 5

Asked by admin @ in Math viewed by 354 persons

If 1/x:1/y:1/z=2:3:5 then x:y:z=?

Y 1 3 y 1 2 1 2y 3

Asked by admin @ in Math viewed by 306 persons

Solve the equation y+1/3-y-1/2=1+2y/3

3 5z 7 2 9z 11 4 8z 13 17

Asked by admin @ in Math viewed by 337 persons

3(5z-7)-2(9z-11)=4(8z-13)-17 plz solve this

3 5x 7 2 9x 11 4 8x 13 17

Asked by admin @ in Math viewed by 375 persons

3(5x-7)-2(9x-11)=4(8x-13)-17SOLVE X

9 3 4 7 2 17 9 1 15

Asked by admin @ in Math viewed by 397 persons

9×3÷4+7×2÷17-9×1÷15​

X 7 8x 3 17 6 5x 2

Asked by admin @ in Math viewed by 360 persons

"Question 3 Solve the linear equation x + 7 - 8x/3 = 17/6 - 5x/2 Linear Equations in One Variable Page 33"

The rational number lies between 3 7 and 2 3

Asked by admin @ in Math viewed by 342 persons

Find rational number lies between 3/7 and 2/3 is (1) . 2/5 ,(2). 4/7 ,(3) 3/ 7,(4). 2/3

X 2x 2 16 3x 5 3 7 2x

Asked by admin @ in Math viewed by 540 persons

X-2x+2-16/3x+5=3-7/2x then x

2 2 fish 3 3 eight 7 7 triangle

Asked by admin @ in English viewed by 272 persons

Explain the puzzle 2+2=fish 3+3=eight 7+7=triangle

4 x 5 y 7 3 x 4 y 5

Asked by admin @ in Math viewed by 324 persons

Solve for X and Y:4/x+5y=7;3/x+4y=5,x=0​

7 1 4 2 3 2 0 3 7 9

Asked by admin @ in Mathematics viewed by 485 persons

Solve the following problems. Reduce your answers to their simplest form. a. 13⁄41 + 27⁄82 b. 3 5⁄24 + 6 7⁄24 + 4 9⁄24 c. 5 2⁄3 + 29⁄69 + …

Most viewed questions in Mathematics

Unit 6 similar triangles homework 2 similar figures answer key

Asked by maham237 @ in Mathematics viewed by 18356 persons

All things algebra unit 7 polygons and quadrilaterals answer key

Asked by admin @ in Mathematics viewed by 8161 persons

Gina wilson all things algebra 2016 answer key unit 11

Asked by admin @ in Mathematics viewed by 5784 persons

Unit 1 geometry basics homework 4 angle addition postulate answers

Asked by maham237 @ in Mathematics viewed by 3936 persons

Unit 6 exponents and exponential functions homework 8 answer key

Asked by maham237 @ in Mathematics viewed by 3253 persons

The manager of a vacation resort believes that the ages

Asked by maham237 @ in Mathematics viewed by 2925 persons

What is 271 403 rounded to the nearest ten thousand

Asked by maham237 @ in Mathematics viewed by 2794 persons

Unit 1 geometry basics homework 3 angle relationships answer key

Asked by maham237 @ in Mathematics viewed by 2582 persons

Homework 2 parallelograms

Asked by maham237 @ in Mathematics viewed by 2502 persons

Why would a prism beat a sphere in a competition?

Asked by maham237 @ in Mathematics viewed by 2481 persons

John wants to send a letter to peter

Asked by maham237 @ in Mathematics viewed by 2464 persons

An artist sells a painting for 20.50 but uses 5.75

Asked by maham237 @ in Mathematics viewed by 2431 persons

Unit 4 congruent triangles homework 1 classifying triangles answer key

Asked by maham237 @ in Mathematics viewed by 2420 persons

Unit 4 congruent triangles homework 2 angles of triangles

Asked by maham237 @ in Mathematics viewed by 2075 persons

Compare the values of the 2s and 5s in 55220

Asked by maham237 @ in Mathematics viewed by 1794 persons