Решите неравенство: 1<=(6x+5)/2<=4.

\[1 \leq \frac{6x + 5}{2} \leq 4\]

\[2 \leq 6x + 5 \leq 8\]

\[- 3 \leq 6x \leq 3\]

\[- 0,5 \leq x \leq 0,5\]

\[Ответ:\lbrack - 0,5;0,5\rbrack.\]