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20 December, 01:40

if a supplement of an angle has a measure 78 less than the measure of the angle, what are the measures of the angles?

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  1. 20 December, 01:59
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    x + x - 78 = 180

    2x - 78 = 180

    2x = 258

    x = 129

    x-78 = 51
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