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Two angles are supplementary they have measures of (7X+2) and (3X-2) , respectively what is the X value

Two angles are supplementary they have measures of (7X+2) and (3X-2) , respectively what is the X value
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4 votes
Two angles are supplementary they have measures of (7X+2) and (3X-2) , respectively what is the X value

User Francesco
by
8.3k points

1 Answer

4 votes
X = 18. Supplementary angles when added equals 180 degrees.
(7X+2) + (3X-2) = 180
7X+2 + 3X-2 = 180
10X+2-2 = 180
10X = 180
X = 18

User JTK
by
7.6k points
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