1.
Let f:R{0}Rf:\mathbb{R}-\{0\}\to\mathbb{R} be a function such that f(x)6f(1x)=355xf(x)-6f\left(\frac{1}{x}\right)=35-5x. If limx0(α+xf(x))=β\lim_{x\to 0}(\alpha+xf(x))=\beta; α,βR\alpha,\beta\in\mathbb{R}, then α+2β\alpha+2\beta is equal to: