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The measure of an angle is 60° less than nineteen times the measure of its supplement. what is the measure of the angle?

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  1. 1 May, 19:40
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    Two angles are supplementary when they add up to 180 degrees.

    x = angle

    19x-60 = supplement angle

    x + 19x - 60 = 180

    20x = 180 + 60

    20x = 240

    x = 240/20

    x = 12 ° ← answer
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