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21 April, 21:56

X - y = 11 2x + y = 19 using elimination

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  1. 21 April, 22:15
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    x-y=11

    2x+y=19

    Add them together then you get

    3x=30

    divide

    x=10

    put it back in so

    10-y=11

    subract 10

    -y=1

    divide by - 1

    y=1

    x=10

    (10,1)
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