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30 December, 17:07

GH = 7y+3, HI = 3y-5, and GI = 9y+7. A) What is the value of y? B) Find GH, HI, and GI.

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  1. 30 December, 17:26
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    A)

    9 y + 7 = 7 y + 3 + 3 y - 5

    9 y - 7 y - 3 y = 3 - 5 - 7

    - y = - 9

    y = 9

    B)

    GH = 63 + 3 = 66

    HI = 27 - 5 = 22

    GI = 66 + 22 = 88
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