Question

What is the solution and how do I solve?

Answer 1

20 + 4x+2 = 6x+8
22 + 4x = 6x+8
4x-6x = 8-22
-2x = -14
x=7
Answer: x=7

Answer 2

20 + 4x+2 = 6x+8 --- By exterior angle

4x+22=6x+8

4x-6x=8-22

-2x=-14

x=7

Hope it helps