Answer:
x = -4, y = 3.
Step-by-step explanation:
3x - 4y = -24................(1).
x + y = -1 Multiply this equation by -3:-
-3x - 3y = 3...................(2)
Adding (1) and (2):
-7y = -21
y = 3.
Substitute y = 3 in equation (1):
3x - 4(3) = -24
3x = -24 + 12
3x = -12
x = -4.
3x - 28 = -24
3x = 4