Answer: the answer is down bellow
Step-by-step explanation:
x3-10oo Dimensions ft each S.
(3x) + (x+60) = 180
4x + 60 = 180
Subtract 60 from both sides
4x = 120
Divide 4 from both sides
x = 30
Typically Geometry. But it depends on your level.
8x - 2y = -8
-5x + 2y = -1
3x = -9
x = -3