f)
[tex]\frac{\frac{x-2,6}{3}-2x}{4}\geq \frac{x+2}{5}\\\\\\\frac{\frac{x-2,6-6x}{3}}{4}\geq \frac{x+2}{5}[/tex]
[tex]\frac{\frac{-5x-2,6}{3}}{4}\geq \frac{x+2}{5}\\\\\\\frac{-5x-2,6}{12}\geq \frac{x+2}{5} \ \ /\cdot 60\\\\\\5(-5x-2,6) \geq 12(x+2)\\\\\\-25x-13 \geq 12x+24\\\\\\-25x-12x \geq 24+13\\\\\\-37x \geq 37 \ \ /:(-37)\\\\\\x \leq -1[/tex]
[tex]x \in (-\infty; -1][/tex]
