Answer:
Explanation:
2x + 7y = -6
4x - y = 18
———————
-2(2x + 7y = -6)
4x - y = 18
———————-
-4x - 14y = 12
4x - y = 18
———————-
-15y = 30
y = 30/-15 = -2
If y = -2 thus:
2x + 7(-2) = -6
2x - 14 = -6
2x = -6 + 14
2x = 8
x = 8/2 = 4
Therefore, x = 4 and y = -2
