| ( | x | − | 5000 | − | 20251 20 | ) | × | 1 10 | = | x | − | 10000 | − | 20251 20 |
| 方程左边 = | x | × | 1 10 | − | 5000 | × | 1 10 | − | 20251 20 | × | 1 10 |
| = | x | × | 1 10 | − | 500 | − | 20251 200 |
| = | 1 10 | x | − | 120251 200 |
1 10 | x | − | 120251 200 | = | x | − | 10000 | − | 20251 20 |
| 方程右边 = | x | − | 220251 20 |
1 10 | x | − | 120251 200 | = | x | − | 220251 20 |
1 10 | x | − | x | = | - | 220251 20 | + | 120251 200 |
| - | 9 10 | x | = | - | 220251 20 | + | 120251 200 |
| - | 9 10 | x | = | - | 2082259 200 |
2082259 200 | = | 9 10 | x |
9 10 | x | = | 2082259 200 |
| x | = | 2082259 200 | ÷ | 9 10 |
| = | 2082259 200 | × | 10 9 |
| = | 2082259 20 | × | 1 9 |
| x | = | 2082259 180 |
| x | = | 11568.105556 |