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30 August, 12:39

Rewrite a. an = 19 - 7 (n-1)

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  1. 30 August, 14:36
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    Solution for an=19-7 (n-1) equation:

    Simplifying

    an = 19 + - 7 (n + - 1)

    Reorder the terms:

    an = 19 + - 7 (-1 + n)

    an = 19 + (-1 * - 7 + n * - 7)

    an = 19 + (7 + - 7n)

    Combine like terms: 19 + 7 = 26

    an = 26 + - 7n

    Solving

    an = 26 + - 7n

    Solving for variable 'a'.

    Move all terms containing a to the left, all other terms to the right.

    Divide each side by 'n'.

    a = 26n-1 + - 7

    Simplifying

    a = 26n-1 + - 7

    Reorder the terms:

    a = - 7 + 26n-1
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