Question

Two angles are supplementary. One angle is 40° more than three times the other. Find the measure of each angle.

Answer 1

4x+40=180
4x=180-40
4x=140
x=35

angle A= 35°
angle B= 35(4)+40= 145°

Answer 2

4x = 180 - 40

4x = 140 degrees

4x/4 = 140/4 degrees

x = 45 degrees

The smaller angle is 45°.