SOLUTION: The larger of two supplementary angles is 20° less than four times the smaller find the measure of each angle

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Question 692936:
The larger of two supplementary angles is 20° less than four times the smaller find the measure of each angle
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
X=4Y-20
X+Y=180
(4Y-20)+Y=180
5Y=180+20
5Y=200
Y=200/5
Y=40 DEGREES FOR THE SMALLER ANGLE.
X=4*40-20
Y=160-20
Y=140 DEGREES FOR THE LARGER ANGLE.
PROOF:
40+140=180
180=180