SOLUTION: an angle's measure is 9 degrees more than 2 times its supplementry. what is the measure of the angle?

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Question 340123: an angle's measure is 9 degrees more than 2 times its supplementry. what is the measure of the angle?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+2x+9=180
3x=171
x=57 degrees
2x+9=123 degrees