SOLUTION: determine the measure of an angle whose measure is 9 more than twice the measure of its supplement

SOLUTION: determine the measure of an angle whose measure is 9 more than twice the measure of its supplement

Algebra.Com

Question 344215: determine the measure of an angle whose measure is 9 more than twice the measure of its supplement
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
x+2x+9=180
3x=171
x=57 degrees
2x+9=123 degrees
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