Question

Two angles are supplementary. One angle is 3x and the other angle is 6x. what is the value of x

Answer 1

Explanation:

Adding two supplementary angles together must equal 180.

Given this, we must add these two angles to equal 180.

`6x + 3x = 180`

Let's add it together. 6X + 3X = 9X

`9x = 180`

Last, we divide both sides by 9 because we want to find x, not 9x

`x = 20`