| 0 | = | 41 100 | x | ( | 10 | − | 3 10 | ) | − | 71 100 | − | 7 125 | × | 3 |
| 方程右边 = | 41 100 | x | ( | 10 | − | 3 10 | ) | − | 71 100 | − | 21 125 |
| = | 41 100 | x | ( | 10 | − | 3 10 | ) | − | 439 500 |
| 0 | = | 41 100 | x | ( | 10 | − | 3 10 | ) | − | 439 500 |
| 方程右边 = | 41 100 | x | × | 10 | − | 41 100 | x | × | 3 10 | − | 439 500 |
| = | 41 10 | x | − | 123 1000 | x | − | 439 500 |
| = | 3977 1000 | x | − | 439 500 |
| 0 | = | 3977 1000 | x | − | 439 500 |
| - | 3977 1000 | x | = | - | 439 500 | − | 0 |
| - | 3977 1000 | x | = | - | 439 500 |
439 500 | = | 3977 1000 | x |
3977 1000 | x | = | 439 500 |
| x | = | 439 500 | ÷ | 3977 1000 |
| = | 439 500 | × | 1000 3977 |
| = | 439 | × | 2 3977 |
| x | = | 878 3977 |
| x | = | 0.220769 |