19 25 | ( | 26000000 | x | ) | = | 26000000 | x | ( | 1 | − | 24 100 | ) |
| 方程左边 = | 19 25 | × | 26000000 | x |
| = | 19760000 | x |
| 19760000 | x | = | 26000000 | x | ( | 1 | − | 24 100 | ) |
| 方程右边 = | 26000000 | x | × | 1 | − | 26000000 | x | × | 24 100 |
| = | 26000000 | x | − | 6240000 | x |
| = | 19760000 | x |
| 19760000 | x | = | 19760000 | x |
| 19760000 | x | − | 19760000 | x | = | 0 |
| 0 | x | = | 0 |