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8 November, 14:32

The sum of 38 and three times a number is 89

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  1. 8 November, 14:45
    0
    the sum of 38 and three times a number is 89

    (38+3n) = 89

    subtract 38 from each side

    3n = 51

    divide by 3

    n = 17
  2. 8 November, 14:51
    0
    38+3x=89 is the proper way to write this equation.

    Now to solve, first subtract 38 from both sides (38-38 and 89-38)

    3x=51

    Now divide both sides by 3 (3x/3 and 51/3)

    x=17
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