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13 October, 13:45

The sum of two numbers is 51 and the difference is 29. what are the numbers?

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  1. 13 October, 14:15
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    X+y=51

    x-y=29

    add equations

    x+y=51

    x-y=29 +

    2x+0y=80

    2x=80

    divide 2

    x=40

    sub

    x+y=51

    40+y=51

    y=11

    they are 40 and 11
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