Find $f^{-1}(x)$ for $f(x) = 13 + 12x$.
Enter the exact answer.
Enclose numerators and denominators in parentheses. For example, $(a - b)/(1 + n)$.
$f^{-1}(x) =$
Show your work and explain, in your own words, how you arrived at your answer. Answers with
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