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11 January, 14:28

X + y = - 2 2x - 3y = - 9

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  1. 11 January, 14:48
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    X + y = - 2

    -x - x

    y = - 2 - x

    2x - 3y = - 9

    2x - 3 (-2 - x) = - 9

    2x + 6 + 3x = - 9

    -6 - 6

    5x = - 15

    5x/5 = - 15/5

    x = - 3

    y = - 2 - x

    y = - 2 - (-3)

    y = - 2 + 3

    y = 1

    the answer: (-3,1)
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