3X-2Y=-27
7X+85=Y
3X -2Y = -27
7X- Y = -85
14x -2Y = -170
11x = 143
x = 13
Now you can compute Y, using either of your equations.
7X+85=Y
7X- Y = -85
14x -2Y = -170
11x = 143
x = 13
Now you can compute Y, using either of your equations.