SOLUTION: Two angles are supplementary and one angle measures 30 less than twice the other. What is the measure of the LARGER angle? (Enter a number)

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Question 219101: Two angles are supplementary and one angle measures 30 less than twice the other. What is the measure of the LARGER angle? (Enter a number)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
X+Y=180 OR X=180-Y
X=2Y-30
2Y-30=180-Y
2Y+Y=180+30
3Y=210
Y=210/3
Y=70 DEGREES.
X=2*70-30
X=140-30
X=110 ANS.
PROOF:
70+110=180
180=180