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4 August, 05:35

Five times a number is the same as 30 more than 8 times the number. Find the number.

If n is "the number," which equation could be used to solve for the number?

5 n = 8 n + 30

3 n = 30

5 n + 8 n = 30

+4
Answers (2)
  1. 4 August, 05:57
    0
    The number is - 10.

    Step-by-step explanation:

    Let the "number" be x.

    5x=8x+30

    30=5x-8x

    30=-3x

    x=30/-3

    x=-10
  2. 4 August, 07:42
    0
    5n=8n+30, which is - 10

    Step-by-step explanation:

    so five times a number, so 5n is the same (or equal to) so 5n = ... 30 more than 8 times the number (8n+30) so we get 5n=8n+30. solving this results in - 3x=30, so x=-10
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