Question

How do you find the value of X?

Answer 1

x + 10 + x + 20 = 180


2x + 30 = 180 


2x = 150


x = 75


A straight line is equal to 180 degrees so you set the equation equal to 180 and use algebra to solve for x. Hope this helps!

Answer 2

A straight line is equal to 180 degrees so you set the equation equal to 180 and use algebra to solve for x.

th answer is 180