2х-4+3=0.4х+3.2

2х-0.4х=4-3+3.2

1.6х=4.2

х=4.2:1.6

х=2.625

Ответ:х=2.625

2(х-2)+3=0.4(х+8)

2х-4+3=0.4х+3.2

1.6х=4.2

х=4.2:1.6

х=2.625

Ответ:2.625