Answer
(6, -14)
Work Step by Step
Solve for x in terms of y in one of the equations:
x - y = 20
x = y + 20
Insert the equation for x in terms of y in the second equation:
y + 20 + y = -8
2y + 20 = -8
2y = -28
y = -14
Let y = -14 in the first equation to solve for x:
x - (-14) = 20
x = 6
Check the solution (6, -14) in the second equation:
6 + (-14) = -8
-8 = -8; True