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27 August, 23:17

System of equations Y=10+2z y=38-5z

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  1. 27 August, 23:18
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    Y = 2z + 10

    y = - 5z + 38

    2z + 10 = - 5z + 38

    + 5z + 5z

    7z + 10 = 38

    - 10 - 10

    7z = 28

    7 7

    z = 4

    y = 2z + 10

    y = 2 (4) + 10

    y = 8 + 10

    y = 18

    (z, y) = (4, 18)
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