Данное уравнение:
\[ \frac{x}{3} - 1 - \frac{3x}{5} - 4 = 5 \]\[ \frac{x}{3} - \frac{3x}{5} - 5 = 5 \]
\[ \frac{x}{3} - \frac{3x}{5} = 5 + 5 \]
\[ \frac{x}{3} - \frac{3x}{5} = 10 \]
\[ \frac{5x}{15} - \frac{9x}{15} = 10 \]
\[ \frac{5x - 9x}{15} = 10 \]
\[ \frac{-4x}{15} = 10 \]
\[ -4x = 10 \cdot 15 \]
\[ -4x = 150 \]
\[ x = \frac{150}{-4} \]
\[ x = -37.5 \]
Ответ: x = -37.5