Answer:
110
Step-by-step explanation:
2x+13+3x+57=180
5x+70=180
180-70=110
x = 110 degrees
Add up all the angles ( y = 180 )
2x + 13 + 3x + 57 = 180
Simplify
5x + 70 = 180
180 - 70 = 110
