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Asked by e.c

Two angles with measures (5x+7) and (15x-7) are supplementary. What is the value of X?
14 years ago

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Answered by Reiny
supplementary angles add up to 180

so solve 5x+7 + 15x-7 = 180 for x
then sub that value of x into both of the angles.
14 years ago
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