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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 (anonymous):
supplementary angles add up to 180. so 5x-10+10x-5 =180 15x-15=180 15x=195 x=13 hope this helped! and I like medals ;)
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