\[\frac{5a - 1}{3} < 3 - 2a\ \ \ | \cdot 3\]
\[5a - 1 < 3 \cdot (3 - 2a)\]
\[5a - 1 < 9 - 6a\]
\[11a < 10\]
\[a < \frac{10}{11}\]
\[Ответ:\ \ a < \frac{10}{11}.\]