2 5 | = | - | 3 10000 | x | × | 2 | + | 27 10000 | x | + | 298 625 |
| 方程右边 = | - | 3 5000 | x | + | 27 10000 | x | + | 298 625 |
| = | 21 10000 | x | + | 298 625 |
2 5 | = | 21 10000 | x | + | 298 625 |
| - | 21 10000 | x | = | 298 625 | − | 2 5 |
| - | 21 10000 | x | = | 48 625 |
| - | 48 625 | = | 21 10000 | x |
21 10000 | x | = | - | 48 625 |
| x | = | - | 48 625 | ÷ | 21 10000 |
| = | - | 48 625 | × | 10000 21 |
| = | - | 16 | × | 16 7 |
| x | = | - | 256 7 |
| x | = | - 36.571429 |