Решите неравенство: 3*(4x-2)-4*(2x-3)<=15+x.

\[12x - 6 - 8x + 12 - 15 - x \leq 0\]

\[3x - 9 \leq 0\]

\[3x \leq 9\]

\[x \leq 3\]

\[Ответ:( - \infty;3\rbrack.\]