Question

Помогите решить
7,8х-4,6х+0,8=12

Answer 1

7,8х-4,6х+0,8=12
3.2x = 11.2
x= 11.2 : 3.2
x= 3.5

Answer 2

7.8х-4.6х+0.8=12
3.2х=12-0.8
3.2х=11.2
х=3.5