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9 February, 12:20

Two angles are supplementary. they have measures of (7x + 2) ° and (3x - 2) °, respectively. what is the value of x? 180 18 90 10 description

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  1. 9 February, 12:40
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    they are supplementary so they add to 180

    (7x + 2) + (3x - 2) = 180

    ... simplify

    10x = 180

    ... divide

    x = 18
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