SOLUTION: An angle measures 120° less than the measure of a supplementary angle. What is the measure of each angle?

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Question 866642: An angle measures 120° less than the measure of a supplementary angle. What is the measure of each angle?
Found 2 solutions by stanbon, ben720:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
An angle measures 120° less than the measure of a supplementary angle. What is the measure of each angle?
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angle: x
supplementary angle: 180-x
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Equation:
x = (180-x)-120
2x = 60
x = 30 degrees
180-x = 150 degrees
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Cheers,
Stan H.
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Answer by ben720(159) About Me  (Show Source):
You can put this solution on YOUR website!
Let the angle = x
x measures 120 less than 180-x
x=180-x-120
Subtract
x=60-x
Add x to both sides
2x=60
Divide both sides by 2
x=30