Question

Angle A and Angle B are complementary. Measure angle A = 2x and measure angle B = 4x + 30°. What is the measure of the angle supplementary to angle A?

Answer 1

2x+4x+30=90
6x+30=90
-30 -30
6x=60
/6 /6
x=10
A=2*10
A=20