Find x + y of this.

Answer:
x + y = 170
Step-by-step explanation:
Using the vertical angle theorem, you can find out that:
x + y + 110 + 80 = 360.
You can simplify this to find x + y.
x + y + 110 + 80 = 360
simplify
x + y + 190 = 360
-190 both sides
x + y = 170