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22 November, 20:00

For the function f (n) = 2n - 7, determine n when f (n) = 11

(Its on goformative and I got the answer to be 15 but it says its wrong.

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  1. 22 November, 20:09
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    n=9

    Step-by-step explanation:

    f (n) = 2n - 7

    we are asked to determine the value of n for which

    f (n) = 11

    Hence

    11=2n-7

    now we solve it for n

    adding above equation 7 on both sides

    11+7=2n-7+7

    18=2n

    dividing by 2 on both sides we get

    9=n

    Hence for n = 9, f (n) = 11
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