| 1 | x | ÷ | 3 | − | 5 | = | 7 | x | ÷ | 2 | − | 9 | x | ÷ | 4 | + | 1 |
| 方程左边 = | 1 3 | x | − | 5 |
1 3 | x | − | 5 | = | 7 | x | ÷ | 2 | − | 9 | x | ÷ | 4 | + | 1 |
| 方程右边 = | 7 2 | x | − | 9 4 | x | + | 1 |
| = | 5 4 | x | + | 1 |
1 3 | x | − | 5 | = | 5 4 | x | + | 1 |
1 3 | x | − | 5 4 | x | = | 1 | + | 5 |
| - | 11 12 | x | = | 1 | + | 5 |
| - | 11 12 | x | = | 6 |
| - | 6 | = | 11 12 | x |
11 12 | x | = | - | 6 |
| x | = | - | 6 | ÷ | 11 12 |
| = | - | 6 | × | 12 11 |
| x | = | - | 72 11 |
| x | = | - 6.545455 |