题目内容
x-
|
| 2x-
| x+(
|
(1)x-
| 1 |
| 3 |
| 1 |
| 2 |
x-
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
x=
| 5 |
| 6 |
(2)
| 5 |
| 6 |
| 3 |
| 4 |
| 5 |
| 6 |
| 3 |
| 4 |
x+
| 3 |
| 4 |
| 5 |
| 6 |
x+
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
| 3 |
| 4 |
x=
| 1 |
| 12 |
(3)2x-
| 3 |
| 10 |
| 17 |
| 10 |
2x-
| 3 |
| 10 |
| 3 |
| 10 |
| 17 |
| 10 |
| 3 |
| 10 |
2x=2,
2x÷2=2÷2,
x=1;
(4)x+(
| 3 |
| 8 |
| 1 |
| 4 |
| 5 |
| 8 |
x+
| 1 |
| 8 |
| 5 |
| 8 |
x+
| 1 |
| 8 |
| 1 |
| 8 |
| 5 |
| 8 |
| 1 |
| 8 |
x=
| 1 |
| 2 |
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