Question

What is the y-coordinate of the solution for the system of equations?

{x−y=−11y+7=−2x

Enter your answer in the box.
y =

Answer 1

The correct answer should be 5

Explanation:

Answer 2

`y=5`

Explanation:

we have

`x-y=-11` ----> isolate the variable x

`x=y-11` -----> equation A

`y+7=-2x` ----> equation B

substitute equation A in equation B

`y+7=-2(y-11)`

solve for y

`y+7=-2y+22`

`y+2y=22-7`

`3y=15`

`y=5`