3x the complement of angle less the supplement of angle is 10 deg. What is supplement?

Question

3x the complement of angle less the supplement of angle is 10 deg. What is supplement?

Answer 1

complement angles = 90.  supplement angles = 180 so

a = angle

3(90-a)-(180-a)=10

270-3a-180+a=10

90-2a=10

80=2a

a=40, the complement is 50 and the supplement is 140 degrees