SOLUTION: what is the measure of an angle that is 100 less than three times its supplement

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Question 220394: what is the measure of an angle that is 100 less than three times its supplement
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x-100=3(180-x)
x-100=540-3x
x+3x=540+100
4x=640
x=640/4
x=160 degrees for the larger angle.
180-160=20 degrees for the smaller angle.
Proof:
160-100=3(180-160)
60=3*20
60=60