Answer:
X=4 Y=28
Explanation:
We have our two equations, 2x+4=12 and Y=4x+12
Solve for x of one of the equations so that the repeating (common) variable can be cancelled out.
Using 2x+4=12, we can solve for the x-value and replace it back into y.
2x+4=12
2x=8
x=4
We can replace our new x-value into the other equation, y=4x+12
y=4(4)+12
y=16+12
y=28
So x=4, and y=28