shyshy9990 shyshy9990

03-01-2022
Mathematics

contestada

If 4x - y = 13 and 2x + y = 17 , then what does 3y - 2x = ?

Respuesta :

dt33183 dt33183

03-01-2022

Answer:

11

Step-by-step explanation:

4x - y = 13 >>>> y = 4x - 13

2x + y = 17 >>>> y = -2x + 17

so

4x - 13 = -2x + 17

4x + 2x = 17 + 13

6x = 30

x = 5

y = 4x - 13 = 4(5) - 13 = 7

then

3y - 2x = 3(7) - 2(5) = 21 - 10 = 11

Answer Link

Otras preguntas

Solve the equation -21 + 25n = 14 for n. A. 1/4 B. 1/3 C. 4/3 D. 7/5

Select All That Apply Domain names that end in .edu are: free purchased commercial sponsored

Lena spent less than $20 at the grocery store .Which inequality represents the amount of ,d, that lena spent last the grocery store ?

can someone help me find the area of the triangle? and can you give me step by step so i can better understand it? thank you!!

Read the excerpt from an informative essay about globalization in China.Despite regulations and limits, these new industries have contributed to high smog level

Which of the following best describes the cultural context of this memoir

Which statement accurately describes a P wave? A. A P wave moves particles up and down or side to side. B. A P wave can move through solid rock only. C.

The door frame has measurements of 3ft by 8 ft. What is the length of the largest table that can be brought in the house on a diagonal? Round to the nearest t

Solve the system of equations. −9x−6y=15 9x−10y=145

Which statement describes evidence of a chemical reaction?