SOLUTION: angle A and B are supplementary. Find angle A and angle B given Angle A=3x+9 and Angle B=4x-18

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Question 222369: angle A and B are supplementary. Find angle A and angle B given Angle A=3x+9 and Angle B=4x-18
Answer by stanbon(75887) About Me  (Show Source):
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angle A and B are supplementary. Find angle A and angle B given Angle A=3x+9 and Angle B=4x-18
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If A and B are supp, A+B = 180
So, 3x+9 + 4x-18 = 180
7x -9 = 180
7x = 189
x = 27
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A = 3x+9 = 3*27+9 = 90
B = 4x-18 = 4*27-18 = 90
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Cheers,
Stan H.