Question

I have to figure out what x equals ​

Answer 1

x = 108

Explanation:

added together, these angles equal 360.

x - 1 + x - 71 + 216 = 360

combine like terms

2x - 72 + 216 = 360

2x + 144 = 360

subtract 144 from both sides of the equation

2x + 144 -144 = 360 - 144

2x = 360 - 144

2x = 216

x = 216/2

x = 108