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8 September, 09:35

The difference of 3 times a number and 18 is 39. what is the number?

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Answers (2)
  1. 8 September, 13:14
    0
    Just set up an equation, with "x" being the unknown number.

    3x-18=39

    3x=57

    x=19.

    The unknown number is 19.
  2. 8 September, 13:35
    0
    The number is 7 (Seven).
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