Answer:
x= 6, y = -9
Step-by-step explanation:
7x+2y=24,
-8x-2y=-30
Add the two equations together to eliminate y
7x+2y=24
----------------------
-x +0y = -6
Divide each side by -1
x = 6
Now solve for y
7x+2y = 24
7*6 +2y = 24
42 +2y = 24
Subtract 42 from each side
42-42 +2y = 24-42
2y =-18
Divide each side by 2
2y/2 = -18/2
y = -9
