e) Решим уравнение \(\frac{y}{4} - \frac{3-2y}{5} = 0\).
$$20 \cdot \frac{y}{4} - 20 \cdot \frac{3-2y}{5} = 20 \cdot 0$$
$$5y - 4(3-2y) = 0$$
$$5y - 12 + 8y = 0$$
$$5y + 8y = 12$$
$$13y = 12$$
$$y = \frac{12}{13}$$
Ответ: 12/13