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11 April, 09:09

How to do this problem x+2y=3 - x+y=6

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  1. 11 April, 10:24
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    One of the ways is solve by elimination

    x+2y=3

    -x+1y=6

    3y=9

    3 3

    y=3

    x+6=3

    -6 - 6

    x=-3

    y=3
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