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7 January, 08:25

if 3 is added to a number and the sum is tripled, the result is 19 more than the number. find the number

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Answers (2)
  1. 7 January, 08:33
    0
    (x + 3) ·3 = x + 19 - -> x = 5
  2. 7 January, 08:41
    0
    The number is 5

    Step-by-step explanation:

    if 3 is added to a number and the sum is tripled, the result is 19 more than the number

    (n+3) * 3 = n+19

    Distribute the 3

    3n + 9 = n+19

    Subtract n from each side

    3n-n + 9 = n-n+19

    2n + 9 = 19

    Subtract 9 from each side

    2n+9-9 = 19-9

    2n = 10

    Divide by 2

    2n/2 = 10/2

    n=5

    The number is 5
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