Answer:
x = 2 and y = 3
Explanation:
-4x + y = -5 -------------------(I)
y = 4x - 5 ------------(II)
2x + y = 7 -------------------(III)
Substitute y = 4x - 5 in equation (III)
2x + 4x - 5 = 7
6x - 5 = 7
Add 5 to both sides
6x = 7 + 5
6x = 12
Divide both sides by 6
x = 12/6
x = 2
Plugin x = 2 in (II)
y = 4*2 - 5
y = 8 -5
y = 3