Math College Work

Question

Two angles are supplementary (sum of 180°). One angle is 3° less than twice the other. What are the measurements of the two angles?

 

Answer 1

x = measure of "other angle"

2x - 3 = measure of "one angle" (3 less than twice the other angle)

Because they are supplementary their measures add to 180:

x + 2x - 3 = 180

3x = 183

x = 61

2x - 3 = 2*61 - 3 = 119

angles are 61 and 119