Step-by-step explanation:
For x
8x + 7 = 9x - 4
8x - 9x = -4 - 7
-x = -11
x = 11°
For y
5y = 7y - 34
5y - 7y = -34
-2y = -34
y = -34/-2
y = 17°
x = 11° and y = 17°
