Answer:
x = -8, y = 4.
Step-by-step explanation:
5x + 3y = -28
5x + 10y = 0
If we subtract these 2 equations we eliminate x:-
0 + 3y - 10y = -28
-7y = -28
y = -28/-7 = 4.
Now substitute y = 4 in the first equation:
5x + 3(4) = -28
5x + 12 = -28
5x = -40
x = -8.