1) 12х-5х=3,192 2)7х+5х+0,28=9,1 3)6х-14,7=22,05 4)7,48-16х=2,68

1) 12х-5х=3,192
7x=3.192
x=3.192:7
x=0.456

2)7х+5х+0,28=9,1 
12x=9.1-0.28
12x=8.82
x=8.82:12
x=0.735

3)6х-14,7=22,05
6x=22.05+14.7
6x=36.75
x=36.75:6
x=6.125

4)7,48-16х=2,68
16x=7.48-2.68
16x=4.8
x=4.8:16
x=0.3

1) 12x - 5x = 3,192
7x = 3,192
x = 3,192 ÷ 7
x = 0,456

2)7x + 5x + 0,28 = 9,1
12x = 9,1 - 0,28
12x = 8,82
x = 8,82 ÷ 12
x = 0,735

3) 6x - 14,7 = 22,05
6x = 22,05 + 14,7
6x = 36,75
x = 36,75 ÷ 6
x = 6,125

4) 7,48 - 16x = 2,68
- 16x = - 7,48 + 2,68
- 16x = - 4,8
16x = 4,8
x = 4,8 ÷ 16
x =0,3