Respuesta :

mrq15

Answer:

x=33

Step-by-step explanation:

add all corners and make it equal to 180

2x-20 + 2x+5 + x = 180

5x -15 = 180

5x = 195

x = 39

8555cashio
2x+5+2x-20+x=180
Add like terms
5x+25=180
Subtract 25 from both sides of the equal sign
5x=155
Now divide both sides of the equal sign by 5 to get the variable by itself
x=31
Your answer is x=31