SOLUTION: A and B are supplementary. Find A and B and show all work please. A= three eights x+50 B= x+31 thank you

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Question 210627: A and B are supplementary. Find A and B and show all work please.

A= three eights x+50

B= x+31

thank you
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Since "A and B are supplementary", this means A%2BB=180. So plug in A=%283%2F8%29x%2B50 and B=x%2B31 into A%2BB=180 to get %283%2F8%29x%2B50%2Bx%2B31=180. Now just solve for 'x' and use this value of 'x' to find A and B.