Question

Find the value of x.

Answer 1

16

Explanation:

don't let the x confuse you. remember add up all the corners of the triangle to get 180.

(9x-8) + (x+10) + (x+2) = 180

add all numbers by themselves and add the variables together

9x + x + x = 11x

-8+10+2=4

11x + 4 = 180

11x = 176

x= 16