Question

Решите уравнение х+х×0,6+х×0,6-3=74

Answer 1

х(1+0.6+0.6)=74+3
2,2х=77
х=77/2,2
х=35

Answer 2

x+x*0,6+x*0,6-3=74;

x+0,6x+0,6x-3=74;

2,2x-3=74;

2,2x=74+3;

2,2x=77;

x=77:2,2;

x=35