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18 February, 05:55

The difference of twice a number and 7 is 17. Find the number.

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  1. 18 February, 06:12
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    The number is 12.

    Step-by-step explanation:

    Model this with an equation:

    Difference means subtraction.

    let x represent the number

    2x - 7 = 17

    2x = 24 < = isolate x to solve

    x = 12

    The number is 12.
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