SOLUTION: if the measure of ∡A is four times the measure of its supplement, what is the measure of ∡A and its supplement

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Question 953117: if the measure of ∡A is four times the measure of its supplement, what is the measure of ∡A and its supplement
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=4S
A%2BS=180
Substituting,
4S%2BS=180
5S=180
S=36
Then,
A=4%2836%29
A=144