SOLUTION: An angle measures 12 degress less than three times its supplement. Find the measures of the angle.

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Question 155738: An angle measures 12 degress less than three times its supplement. Find the measures of the angle.
Answer by jojo14344(1512) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB=180 ---------------> working eqn
B is a supplement of A where A=3B-12 ----> highlight%28condition%29, 3 times its supplement less 12deg.
So go back wworking eqn:
3B-12%2BB=180
4B=180%2B12 ----> 4B=192
cross%284%29B%2Fcross%284%29=cross%28192%2948%2Fcross%284%29
B=48deg
go back working eqn to get A;
A%2B48=180
A=180-48=132deg
In doubt? go back to the highlight%28condition%29:
132=3%2848%29-12
132=144-12
132deg=132deg
Thank you,
Jojo