\[3(x - 1) \leq 4x - 7\]
\[3x - 3 \leq 4x - 7\]
\[3x - 4x \leq - 7 + 3\]
\[- x \leq - 4\]
\[x \geq 4.\]
\[Ответ:x \geq 4.\]