1 2 | x | + | 1 5 | x | − | 11 5 | = | 38 5 |
| 方程左边 = | 7 10 | x | − | 11 5 |
7 10 | x | − | 11 5 | = | 38 5 |
7 10 | x | = | 38 5 | + | 11 5 |
7 10 | x | = | 49 5 |
| x | = | 49 5 | ÷ | 7 10 |
| = | 49 5 | × | 10 7 |
| = | 7 | × | 2 |
| x | = | 14 |
1 5 | x | + | 1 5 | x | + | 18 5 | = | 34 5 |
| 方程左边 = | 2 5 | x | + | 18 5 |
2 5 | x | + | 18 5 | = | 34 5 |
2 5 | x | = | 34 5 | − | 18 5 |
2 5 | x | = | 16 5 |
| x | = | 16 5 | ÷ | 2 5 |
| = | 16 5 | × | 5 2 |
| = | 8 | × | 1 |
| x | = | 8 |
9 10 | x | + | 1 5 | x | − | 27 10 | = | 5 |
| 方程左边 = | 11 10 | x | − | 27 10 |
11 10 | x | − | 27 10 | = | 5 |
11 10 | x | = | 5 | + | 27 10 |
11 10 | x | = | 77 10 |
| x | = | 77 10 | ÷ | 11 10 |
| = | 77 10 | × | 10 11 |
| = | 7 | × | 1 |
| x | = | 7 |
9 10 | x | + | 3 10 | x | − | 21 5 | = | 57 5 |
| 方程左边 = | 6 5 | x | − | 21 5 |
6 5 | x | − | 21 5 | = | 57 5 |
6 5 | x | = | 57 5 | + | 21 5 |
6 5 | x | = | 78 5 |
| x | = | 78 5 | ÷ | 6 5 |
| = | 78 5 | × | 5 6 |
| = | 13 | × | 1 |
| x | = | 13 |
1 10 | x | + | 1 2 | x | − | 11 5 | = | 13 5 |
| 方程左边 = | 3 5 | x | − | 11 5 |
3 5 | x | − | 11 5 | = | 13 5 |
3 5 | x | = | 13 5 | + | 11 5 |
3 5 | x | = | 24 5 |
| x | = | 24 5 | ÷ | 3 5 |
| = | 24 5 | × | 5 3 |
| = | 8 | × | 1 |
| x | = | 8 |
4 5 | x | + | 17 10 | = | 9 5 | + | 7 10 | x |
4 5 | x | − | 7 10 | x | = | 9 5 | − | 17 10 |
1 10 | x | = | 9 5 | − | 17 10 |
1 10 | x | = | 1 10 |
| x | = | 1 10 | ÷ | 1 10 |
| = | 1 10 | × | 10 |
| = | 1 | × | 1 |
| x | = | 1 |