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13 January, 11:05

What is the measure of an angle that is 8 degrees less than 3 times its supplement?

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  1. 13 January, 11:11
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    Supplementary angles have a sum of 180 degrees.

    If one angle is x, its supplementary angle is 180-x.

    We are told that x is 8 less than triple its supplements so:

    x=3 (180-x) - 8

    x=540-3x-8

    4x=532

    x=133
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