Answer :
1x - 1y = 8
1x + 2y = 2
-3y = 6
-3 -3
y = -2
x - (-2) = 8
x + 2 = 8
- 2 - 2
x = 6
(x, y) = (6, -2)
1x + 2y = 2
-3y = 6
-3 -3
y = -2
x - (-2) = 8
x + 2 = 8
- 2 - 2
x = 6
(x, y) = (6, -2)