Please help me I don’t understand
![Please help me I dont understand class=](https://us-static.z-dn.net/files/da0/91fa9a9c6eaba04ceca1942cf42911d4.png)
Answer:
Step-by-step explanation:
x + 50 + 60 + x + 70 = 180
2x + 180 = 180
2x = 0
x = 0