Answer: x=10, y=-9
Explanation:
1. isolate y
-9y=11+7x
y=-11/9 -7x/9
2. plug y into 2nd equation
5x + 6(-11/9 -7x/9)=-4
5x - 22/3 - 14x/3 =-4
3. solve for x
15x/3 - 14x/3 = 10/3
x/3=10/3
x=10
4. use x for solve for y
-7(10) - 9y = 11
-70 - 9y =11
-9y = 81
y=-9
i hope this helps