Найду корень уравнения: 0,6y-4=0,4y
3*y 2*y --- - 4 = --- 5 5
(3/5)*y-4 = (2/5)*y
3/5y-4 = (2/5)*y
3/5y-4 = 2/5y
y = 4 / (1/5)
y1 = 20
сумма
0 + 20
=
20
произведение
1*20
y1 = 20.0