SOLUTION: The measure of an angle is 20 degrees less than three times its supplement. Find the measure of each angle. I need to find out how to do this proble, my teacher already gave me

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Question 164700: The measure of an angle is 20 degrees less than three times its supplement. Find the measure of each angle.
I need to find out how to do this proble, my teacher already gave me the answer.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3X-20+X=180
4X=180+20
4X=200
X=200/4
X=50 DEGREES FOR THE SMALLER ANGLE.
3*50-20=150-20=130 DEGREES FOR THE LARGER ANGLE.
PROOF:
50+130=180
180=180