Question

The angles below are supplementary. What is the value of x?

5
7.5
15
30

Answer 1

Your answer its
X=30

Answer 2

x=30

Explanation:

The two angles are supplementary. They add to 180

4x+20 + 40 =180

Combine like terms

4x+60 =180

Subtract 60 from each side

4x+60-60 = 180-60

4x = 120

Divide each side by 4

4x/4 = 120/4

x = 30