| ( | 16382 | − | x | ÷ | 5 2 | × | 686 | ) | × | 133 10000 | x | ÷ | 5 2 | = | 130 |
| 方程左边 = | ( | 16382 | − | x | ÷ | 5 2 | × | 686 | ) | × | 133 25000 | x |
| ( | 16382 | − | x | ÷ | 5 2 | × | 686 | ) | × | 133 25000 | x | = | 130 |
| 方程左边 = | 16382 | × | 133 25000 | x | − | x | ÷ | 5 2 | × | 686 | × | 133 25000 | x |
| = | 1089403 12500 | x | − | x | × | 45619 31250 | x |
1089403 12500 | x | − | x | × | 45619 31250 | x | = | 130 |