Answer:
x=14 y = 17
Explanation:
(5y-21) + (6x+32) = 180
5y - 21 + 116 = 180
6x + 32 = 116
-32 from both sides
6x=84
divide by 6 on both sides
x = 14
5y - 21 = 64
+ 21 on both sides
5y = 85
divide by 5 on both sides
y = 17
if you would like i can explain further in the comments