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21 August, 02:33

Twice a number is equal to 35 more than seven times the number. Find the number

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  1. 21 August, 03:00
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    number - n

    Twice a number - 2n

    Seven times the number - 7n

    2n = 7n + 35

    7n-2n = - 35

    5n = - 35

    n = - 7

    Check:

    2 (-7) = 7 (-7) + 35

    -14 = - 49 + 35

    -14 = - 14 True

    The number is ( - 7).
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