Решите неравенство: (1+6x)/7<=1.

\[\frac{1 + 6x}{7} \leq 1\]

\[1 + 6x \leq 7\]

\[6x \leq 6\]

\[x \leq 1\]

\[Ответ:x \in ( - \infty;1\rbrack.\]