Use algebra to find the measure of the angles in the pair of complementary angles below. Show your work.

Answer:
18 and 72
Step-by-step explanation:
4x+x=90
5x=90
divided by 5
x=18
for the first side, since you only have x, you put 18
for the second one, since 4x, 4(18)=72
hope this helps!