а)
\[6x - 11 < 4x - 3\]
\[6x - 4x < 11 - 3\]
\[2x < 8\]
\[x < 4\]
\[4 - 5x < 9\]
\[-5x < 9 - 4\]
\[-5x < 5\]
\[x > -1\]
\[-1 < x < 4\]
б)
\[4 - 1.3x \ge 0.7x\]
\[4 \ge 2x\]
\[x \le 2\]
\[\frac{x}{6} < x + 2\]
\[x < 6x + 12\]
\[-5x < 12\]
\[x > -\frac{12}{5}\]
\[x > -2.4\]
\[-2.4 < x \le 2\]
Ответ: a) -1 < x < 4; б) -2.4 < x \le 2