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29 March, 08:35

2x+3y=-2 4x+7y=-6 solve for the system of equations

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  1. 29 March, 11:24
    0
    Elliminateion

    multiply first equation by - 2 and add to 2nd equation

    -4x-6y=4

    4x+7y=-6 +

    0x+1y=-2

    y=-2

    sub back

    2x+3y=-2

    2x+3 (-2) = - 2

    2x-6=-2

    2x=4

    x=2

    (x, y)

    (2,-2)
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