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27 March, 03:55

5x + 4y + 3z = 14 x = 3z - 22 z = 6 What is the y-value of the solution?

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  1. 27 March, 07:43
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    X = 3z - 22

    z = 6

    5x + 4y + 3z = 14

    5 (3z - 22) + 4y + 3 (6) = 14

    15z - 110 + 4y + 18 = 14

    15. 6 - 110 + 4y + 18 = 14

    90 - 110 + 4y + 18 = 14

    90 - 110 + 18 - 14 + 4y = 0

    -16 + 4y = 0

    4y = 16

    y = 4
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