| 945938 | × | 9 20 | − | x | = | 11 25 | ( | 945938 | − | x | ) |
| 方程左边 = | 4256721 10 | − | x |
4256721 10 | − | x | = | 11 25 | ( | 945938 | − | x | ) |
| 方程右边 = | 11 25 | × | 945938 | − | 11 25 | x |
| = | 10405318 25 | − | 11 25 | x |
4256721 10 | − | x | = | 10405318 25 | − | 11 25 | x |
| - | x | + | 11 25 | x | = | 10405318 25 | − | 4256721 10 |
| - | 14 25 | x | = | 10405318 25 | − | 4256721 10 |
| - | 14 25 | x | = | - | 472969 50 |
472969 50 | = | 14 25 | x |
14 25 | x | = | 472969 50 |
| x | = | 472969 50 | ÷ | 14 25 |
| = | 472969 50 | × | 25 14 |
| = | 67567 2 | × | 1 2 |
| x | = | 67567 4 |
| x | = | 16891.75 |