SOLUTION: An angle is 12 degrees less than one half of its supplement. Find the supplement.

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Question 504250: An angle is 12 degrees less than one half of its supplement. Find the supplement.
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
a + 12 = 1/2s
2a + 24 = s
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a + s = 180
s = 180 -a
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2a + 24 = 180 -a
3a = 156
a = 52
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s = 180-52
s = 128
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Check
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Does a + 12 = 1/2s?
a+12 = 52 + 12 = 64
1/2s = 1/2*128 = 64
OK
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Answer: The supplement is 128 degrees.
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Done.