Question

Given m|n, find the value of x.
(8x-20)
(8x+8)

Answer 1

x=12

Explanation:

(8x-20)+(8x+8)=180

16x-12=180

16x=180+12

16x=192

x=12

Answer 2

x = 12

Explanation:

The given angles are supplementary. Therefore, they have a sum of 180°.

8x - 20 + 8x + 8 = 180

16x - 12 = 180

16x = 192

x = 12