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10 October, 08:15

Find the solution of this system of equations

-2x-2y=-12

4x-7y=-15

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  1. 10 October, 11:35
    0
    -2x-2y=-12

    4x-7y=-15

    Solve for x in the first equation

    -2x=-12+2y

    2x=12-2y

    x=6-y

    Plug x into the second equation

    4 (6-y) - 7y=-15

    24-4y-7y=-15

    24-11y=-15

    11y=39

    y=3.54

    Plug that into the eqaution for x

    x=6-3.54

    x=2.46
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