Question

First, solve the equation for y(DONE). Second, find the value of y for the given x-value(?).

3x - 2y = -7, when x = 3

I figured out the first step.
I need help with the second step? Please?

Answer 1

Solve for y:

\[3x-2y=-7\]group like terms and isolate positive y\[2y=3x+7\]divide by 2\[y=\frac{ 3x+7 }{ 2 }\]

Value of y when x=3:
\[y=\frac{ 3x+7 }{ 2 }\]\[y=\frac{ 3(3)+7 }{ 2 }\]\[y=\frac{ 9+7 }{ 2 }\]\[y=\frac{ 16}{ 2 }=8\]