An angle measures 12 degrees less than three times it's supplement. Find the measure of the angle

measure-the-angle

#1

An angle measures 12 degrees less than three times it’s supplement. Find the measure of the angle.

Answer:

Let’s say the angle = x . Then its supplement becomes 180-x

x = 3(180-x) -12
12+x = 540 - 3x
4x = 528
x = 132 degrees