(2x-50)
(x+40)
150°
80°
(x+20)
That 80 is not the correct x
![2x50 x40 150 80 x20 That 80 is not the correct x class=](https://us-static.z-dn.net/files/d41/30547a86ec81f15c79a3cb8d6218125c.png)
Answer: x=120
Step-by-step explanation:
(2x-50)+(x+40)+150+80+(x+20)+90= 720
4x+330= 720
4x=390
x=97.5