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20 August, 15:39

One number is eight more than twice another. If their difference is 25, what is the larger number?

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  1. 20 August, 15:47
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    You can set up an system of equations

    x=2y+8

    x-y=25

    Substitute x in to the second equation

    2y+8-y=25

    y+8=25

    y=17

    Substitute the y back in to the first equation.

    x=2 (17) + 8=42
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