Differentiation

For the differentiable function \(f: \mathbb{R}-\{0\} \rightarrow \mathbb{R}\), let \(3 f(x)+2 f\left(\frac{1}{x}\right)=\frac{1}{x}-10\), then \(\left|f(3)+f^{\prime}\left(\frac{1}{4}\right)\right|\) is equal to