what is the measure of the angle whose supplement is four times its complement

Question

need help 

Answer 1

supplement  =180-x

complement = 90-x

x = angle

 

180-x = 4(90-x)

180 -x =360 -4x

3x =180

x=60

check:

 

measure of angle 60 degrees

complement 90-60 = 30 degrees

supplement is 180-60 = 120 degrees 

so supplement is equal to 4 times complement 4(30)= 120