Question

2x + y = -2
x + y = 5

The y-coordinate of the solution to the system shown is _____.

Answer 1

help me

Answer 2

Is it for both y?

Answer 3

yes

Answer 4

Alr

Answer 5

They want y, so just isolate x in one equation, input it into the other equation, then solve for y.

\[x + y= 5\]
Subtract y from both sides
\[x = 5 - y\]

Input x into other equation:
\[2x + y = -2\]
Becomes,
\[2(5 - y) + y = -2\]
Distribute 2 to 5 and -y
\[10 - 2y + y = -2\]
Like terms (y)
\[10 - y = -2\]
Subtract 10 from both sides
\[-y = -12\]
Multiply both sides by -1
\[y = 12\]

Answer 6

thxx u too

Answer 7

You're welcome