1.а) 6х=-18
х=-18/6=-3
б) 21х=-3
х=-3/21=-1/7
2. 12с+22=82
12с=82-22
12с=60
с=5
3. -8х+3=-х+24
-8х+х=24-3
-7х=21
х=-3
а) 6х = - 18
х = - 18 : 6
х = - 3
б) 21х = - 3
х = - 3 : 21
х = - 1/7
12с + 22 = 82
12с = 82 - 22
12с = 60
с = 60 : 12
с = 5
- 8х + 3 = - х + 24
- 8х + х = 24 - 3
- 7х = 24 - 3
- 7х = 21
х = 21 : ( - 7 )
1.а) 6х=-18
х=-18/6=-3
б) 21х=-3
х=-3/21=-1/7
2. 12с+22=82
12с=82-22
12с=60
с=5
3. -8х+3=-х+24
-8х+х=24-3
-7х=21
х=-3
а) 6х = - 18
х = - 18 : 6
х = - 3
б) 21х = - 3
х = - 3 : 21
х = - 1/7
212с + 22 = 82
12с = 82 - 22
12с = 60
с = 60 : 12
с = 5
3- 8х + 3 = - х + 24
- 8х + х = 24 - 3
- 7х = 24 - 3
- 7х = 21
х = 21 : ( - 7 )
х = - 3