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18 October, 21:00

One number is 2 less than a second number. Twice the second number is 17 less than 5 times the first

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  1. 18 October, 21:30
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    X=y-2

    2y=5x-17

    Substituting for x into the second equation, we find

    2y=5 (y-2) - 17

    2y=5y-10-17

    -3y=-27

    y=9

    So x=7

    Thus, the two numbers are 7 and 9.
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