| 3000000 | − | ( | 27743119 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | − | 34679 25 | ) | − | 1376147 100 | − | 15000 | − | 232000 | = | x |
| 方程左边 = | 273923853 100 | − | ( | 27743119 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | − | 34679 25 | ) |
273923853 100 | − | ( | 27743119 100 | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | 2330399 100 | − | 34679 25 | ) | = | x |
| 方程左边 = | 273923853 100 | − | 27743119 100 | + | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | + | 2330399 100 | + | 34679 25 |
| = | 273923853 100 | − | 27743119 100 | + | x | × | 252 2725 | + | 2330399 100 | + | 34679 25 |