HyacinthFelix HyacinthFelix

30-01-2017
Mathematics

contestada

Two angles are supplementary. They have measures of (7x + 2)° and (3x – 2)°, respectively. What is the value of x?

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dakotalyon99 dakotalyon99

30-01-2017

(7x+2) + (3x-2) = 90
7x+2 + 3x-2 = 90
10x+2-2 = 90
10x = 90
x = 9

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