1) 12 х-5 х=3,192

2) 7 х+5 х+0,28=9,1

3) 6 х-14,7=22,05

4) 7,48-16 х=2,68

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

1) 12 х-5 х=3,192

7x=3.192

x=3.192:7

x=0.456

2) 7 х+5 х+0,28=9,1

12x=9.1-0.28

12x=8.82

x=8.82:12

x=0.735

3) 6 х-14,7=22,05

6x=22.05+14.7

6x=36.75

x=36.75:6

x=6.125

4) 7,48-16 х=2,68

16x=7.48-2.68

16x=4.8

x=4.8:16

x=0.3