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17 August, 09:57

Solve f/2 - 9 = 13 for f.

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  1. 17 August, 10:10
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    Answer: f = 44

    I'm assuming the "-9" part is not part of the denominator

    (f/2) - 9 = 13

    f/2 = 13+9 ... add 9 to both sides

    f/2 = 22

    f = 22*2 ... multiply both sides by 2

    f = 44

    As a check, replace f with 44 and simplify both sides

    (f/2) - 9 = 13

    (44/2) - 9 = 13

    22 - 9 = 13

    13 = 13 ... answer is confirmed
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