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25 September, 11:06

ABC and DEF are supplementary. If

m ABC = 2y and mZDEF = 3y - 5, find y.

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  1. 25 September, 11:33
    0
    2y+3y-5=180

    5y=180+5

    5y=185

    y=185/5

    y=37
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