1) 1 + 3х = – 2 2) 23 – 4х = 21 3) – 3 – 5х = - 23
4) 7 + 7х = - 14 5) – 5 – 15х = - 20 6) 19 + 4х = 17
Решите уравнения.
212
396
Ответы на вопрос:
1) 1 + 3х = - 2
3х = - 2 - 1
3х = - 3
х = - 1
2) 23 - 4х = 21
- 4х = 21 - 23
- 4х = - 2
- 4х = - 2/4
х = 2/4
3) - 3 - 5х = - 23
- 5х = - 23 + 3
- 5х = - 20
- х = - 4
х = 4
4) 7 + 7х = - 14
7х = - 14 - 7
7х = - 21
х = - 3
5) - 5 - 15х = - 20
- 15х = - 20 + 5
- 15х = - 15
- х = - 1
х = 1
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