| x | ÷ | 83 250 | = | ( | 18 | − | x | ) | ÷ | 33 250 |
| 方程右边 = | 18 | × | 250 33 | − | x | × | 250 33 |
| = | 1500 11 | − | x | × | 250 33 |
250 83 | x | = | 1500 11 | − | 250 33 | x |
250 83 | x | + | 250 33 | x | = | 1500 11 |
29000 2739 | x | = | 1500 11 |
| x | = | 1500 11 | ÷ | 29000 2739 |
| = | 1500 11 | × | 2739 29000 |
| = | 3 | × | 249 58 |
| x | = | 747 58 |
| x | = | 12.87931 |