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18 April, 09:21

Which ordered pair (x, y) is a solution to the given systems of linear equations? 3x+3y=-3 and - 2x+y=2

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  1. 18 April, 09:40
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    3x+3y=-3

    divide both sides by 3 for ease

    x+y=-1

    now eliminate x's

    multiply that equation by 2 and add to other one

    2x+2y=-2

    -2x+y=2 +

    0x+3y=0

    3y=0

    y=0

    x+y=-1

    x+0=-1

    x=-1

    (x, y)

    (-1,0)
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