e) Решим уравнение: $$\frac{y}{4}-\frac{3-2y}{5}=0$$
Приведем дроби к общему знаменателю 20:
$$\frac{5y}{20}-\frac{4(3-2y)}{20}=0$$
$$\frac{5y}{20}-\frac{12-8y}{20}=0$$
$$\frac{5y-(12-8y)}{20}=0$$
$$\frac{5y-12+8y}{20}=0$$
$$\frac{13y-12}{20}=0$$
$$13y-12=0$$
$$13y = 12$$
$$y = \frac{12}{13}$$
Ответ: $$y = \frac{12}{13}$$