| 2000000 | − | ( | 18495413 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | ) | − | 917431 100 | = | x |
| 方程左边 = | 199082569 100 | − | ( | 18495413 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | ) |
199082569 100 | − | ( | 18495413 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | ) | = | x |
| 方程左边 = | 199082569 100 | − | 18495413 100 | + | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | + | 2330399 100 |
| = | 199082569 100 | − | 18495413 100 | + | x | × | 252 2725 | + | 2330399 100 |
| = | 36583511 20 | + | 252 2725 | x |
36583511 20 | + | 252 2725 | x | = | x |
252 2725 | x | − | x | = | - | 36583511 20 |
| - | 2473 2725 | x | = | - | 36583511 20 |
36583511 20 | = | 2473 2725 | x |
2473 2725 | x | = | 36583511 20 |
| x | = | 36583511 20 | ÷ | 2473 2725 |
| = | 36583511 20 | × | 2725 2473 |
| = | 36583511 4 | × | 545 2473 |
| x | = | 19938013495 9892 |