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6 January, 13:43

Find out n of these equations:

4n + 10 = 18

4n - 13 = 23

10n + 8 = 78

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Answers (2)
  1. 6 January, 14:21
    0
    A)

    N = 2

    b)

    N = 9

    C)

    N = 7
  2. 6 January, 15:15
    0
    4n+10=18 4n-13=23 10n+8=78

    4n+10-10=18-10 4n-13+13=23+13 10n+8-8=78-8

    4n=8 4n=36 10n=70

    n=2 n=9 n=7
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