Step-by-step explanation:
-x + 4y = -4
y = 1/2x -2
-x + 4(1/2x - 2) = -4
-x + 2x - 2 = 4
x = 4 + 2
x = 6
y = 1/2x - 2
y = 1/2 x 6 - 2
y = 3 - 2
y = 1
(x, y) = (6, 1)
