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OpenStudy (anonymous):
Angle A and angle B are supplementary. Angle A measures 5x – 10 and angle B measures 10x – 5. Find the value of x.
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OpenStudy (campbell_st):
well supplementary means they add to 180 degrees so 180 = 5x - 10 + 10x - 5 or 180 = 15x - 15 just solve for x
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