| ( | x | − | 12241 100 | ) | × | 10 | − | 3 5 | − | 3 5 | = | 1 |
| 方程左边 = | ( | x | − | 12241 100 | ) | × | 10 | − | 6 5 |
| ( | x | − | 12241 100 | ) | × | 10 | − | 6 5 | = | 1 |
| 方程左边 = | x | × | 10 | − | 12241 100 | × | 10 | − | 6 5 |
| = | x | × | 10 | − | 12241 10 | − | 6 5 |
| = | 10 | x | − | 12253 10 |
| 10 | x | − | 12253 10 | = | 1 |
| 10 | x | = | 1 | + | 12253 10 |
| 10 | x | = | 12263 10 |
| x | = | 12263 10 | ÷ | 10 |
| = | 12263 10 | × | 1 10 |
| x | = | 12263 100 |
| x | = | 122.63 |