SOLUTION: If an angle is twice its supplement, find the angle

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Question 349660: If an angle is twice its supplement, find the angle
Found 2 solutions by rfer, ewatrrr:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+2x=180
3x=180
x=60 degrees
2x=120 degrees

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Hi,
Note: the sum of supplementary angles is 180
Let 2*x be the larger. x the other angle.
.
2x + x = 180
.
3x = 180
.
x = 60
.
The suplementary asked for!
2x = 120degrees
.
check you answer
60 + 120 = 180