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5 March, 20:56

X-7=11, 2x+y=19 when using elimination

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  1. 5 March, 23:43
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    X+0=18

    2x+y=19

    (-2) x + (-2) 0 = (-2) 18

    2x+y=19

    0+y = - 17

    2x + (-17) = 19

    2x=36

    y=-17

    x=18
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