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20 May, 21:54

15 - 1/6n = 1/6n - 1

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  1. 21 May, 00:13
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    15 - 1/6n = 1/6n - 1

    rewrite

    1/6n - 1 = 15 - 1/6n

    add 1/6 n to both sides

    1/6n - 1 + 1/6n = 15 - 1/6n + 1/6n

    Simplify

    2/6n - 1 = 15

    1/3n - 1 = 15

    add 1 to both sides

    1/3n - 1 + 1 = 15 + 1

    1/3n = 16

    Multiply 3 to both sides

    1/3n * 3 = 16 * 3

    3/3n = 48

    n = 48
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