# NMTC Inter Level Problem 3 + Figure-It-Out Function! - Part 5: Inverses

Algebra Level 3

$3f(x)-2f \left (\frac{1}{x} \right )=x$ For $$x \ne 0$$, if $$f : \mathbb R \rightarrow \mathbb R$$ and it satisfy the equation above, find the value of $$f(4)$$.

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