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

Answer:

$y=5$

Step-by-step 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

$y+7=-2y+22$

$y+2y=22-7$

$3y=15$

$y=5$

Answer 2

Answer:

The correct answer should be 5

Step-by-step explanation: