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17 April, 14:20

Which ordered pair is a soulution of the equation 2x-y=9

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  1. 17 April, 14:26
    0
    (0,-9)

    Step-by-step explanation:

    2x-y=9 is firsl equation

    x=9+y is second equation

    put value of x in 1st equation

    2 (9+y) - y=9

    18 + 2y-y=9

    18+y=9

    y=9-18

    y=-9

    put value of y in st equation

    2x - (-9) = 9

    2x+9=9

    x=0
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