Supplement = 180-x
Complement = 90-x
Let x be the angle:
If you can not understand break them down into simplier meaning:
"15 degrees less than 4 times the complement"
15 degrees less than ---> (180-x)-15
4 times the complement: -->4(90-x)
Equation:
(180-x)-15=4(90-x)
165-x=360-4x
-195=-3x
x=65 (complement)
SUpplement = 180-15-65-->100
Hence, the measure of the supplment of an angle is 100 degrees and the measure of the complement of an angle is 65 degrees.
Paul.