\[10x - 20 - 8x + 2 - 2 + 5x \leq 0\]
\[7x - 20 \leq 0\]
\[7x \leq 20\]
\[x \leq 2\frac{6}{7}\]
\[Ответ:\left( - \infty;2\frac{6}{7} \right\rbrack\text{.\ }\]