Найду корень уравнения: 0.6x+100=0.9x+1
3*x 9*x --- + 100 = --- + 1 5 10
(3/5)*x+100 = (9/10)*x+1
3/5x+100 = (9/10)*x+1
3/5x+100 = 9/10x+1
x = -99 / (-3/10)
x1 = 330
сумма
0 + 330
=
330
произведение
1*330
x1 = 330.0