Найду корень уравнения: 1,3х-11=0,8х+5
13*x 4*x ---- - 11 = --- + 5 10 5
(13/10)*x-11 = (4/5)*x+5
13/10x-11 = (4/5)*x+5
13/10x-11 = 4/5x+5
x = 16 / (1/2)
x1 = 32
сумма
0 + 32
=
32
произведение
1*32
x1 = 32.0