\[\frac{2 - x}{5} - \frac{4 - x}{3} > 0\ \ \ \ \ | \cdot 15\]
\[3 \cdot (2 - x) - 5 \cdot (4 - x) > 0\]
\[6 - 3x - 20 + 5x > 0\]
\[2x > 14\]
\[x > 7.\]
\[Ответ:8.\]