| ( | 20 | + | x | ) | ÷ | 357 250 | = | x | ÷ | 233 500 |
| 方程左边 = | 20 | × | 250 357 | + | x | × | 250 357 |
| = | 5000 357 | + | x | × | 250 357 |
5000 357 | + | 250 357 | x | = | x | ÷ | 233 500 |
250 357 | x | − | 500 233 | x | = | - | 5000 357 |
| - | 120250 83181 | x | = | - | 5000 357 |
5000 357 | = | 120250 83181 | x |
120250 83181 | x | = | 5000 357 |
| x | = | 5000 357 | ÷ | 120250 83181 |
| = | 5000 357 | × | 83181 120250 |
| = | 20 | × | 233 481 |
| x | = | 4660 481 |
| x | = | 9.68815 |