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16 November, 21:48

What are two numbers that have a difference of 8 and have add to make 4?

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  1. 16 November, 22:12
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    6,-2

    X-y=8

    X+y=4

    Ys cancel

    2x=12

    X=6 substitute

    6+y=4

    Subtract 6

    4-6=-2
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