| - | 3 200 | = | ( | X | − | 1847200 | ) | ÷ | 1874200 | × | 100 100 |
| 方程右边 = | ( | X | − | 1847200 | ) | × | 1 1874200 |
| - | 3 200 | = | ( | X | − | 1847200 | ) | × | 1 1874200 |
| 方程右边 = | X | × | 1 1874200 | − | 1847200 | × | 1 1874200 |
| = | X | × | 1 1874200 | − | 9236 9371 |
| - | 3 200 | = | 1 1874200 | X | − | 9236 9371 |
| - | 1 1874200 | X | = | - | 9236 9371 | + | 3 200 |
| - | 1 1874200 | X | = | - | 1819087 1874200 |
1819087 1874200 | = | 1 1874200 | X |
1 1874200 | X | = | 1819087 1874200 |
| X | = | 1819087 1874200 | ÷ | 1 1874200 |
| = | 1819087 1874200 | × | 1874200 |
| = | 1819087 9371 | × | 9371 |
| X | = | 17046664277 9371 |