551 400 | = | - | 231 10000 | x | × | 2 | + | 47 500 | x | + | 6771 5000 |
| 方程右边 = | - | 231 5000 | x | + | 47 500 | x | + | 6771 5000 |
| = | 239 5000 | x | + | 6771 5000 |
551 400 | = | 239 5000 | x | + | 6771 5000 |
| - | 239 5000 | x | = | 6771 5000 | − | 551 400 |
| - | 239 5000 | x | = | - | 233 10000 |
233 10000 | = | 239 5000 | x |
239 5000 | x | = | 233 10000 |
| x | = | 233 10000 | ÷ | 239 5000 |
| = | 233 10000 | × | 5000 239 |
| = | 233 2 | × | 1 239 |
| x | = | 233 478 |
| x | = | 0.487448 |