| x | ÷ | ( | 1 | − | x | ) | ÷ | ( | 2 | − | x | ) | = | 413 10 |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
| x | ÷ | ( | 2 | − | x | ) | = | 413 10 | ( | 1 | − | x | ) |
| x | ÷ | ( | 2 | − | x | ) | = | 413 10 | × | 1 | − | 413 10 | x |
| x | ÷ | ( | 2 | − | x | ) | = | 413 10 | − | 413 10 | x |
| 方程两边同时乘以: | ( | 2 | − | x | ) |
| x | = | 413 10 | ( | 2 | − | x | ) | − | 413 10 | x | ( | 2 | − | x | ) |
| x | = | 413 10 | × | 2 | − | 413 10 | x | − | 413 10 | x | ( | 2 | − | x | ) |
| x | = | 413 5 | − | 413 10 | x | − | 413 10 | x | ( | 2 | − | x | ) |
| x | = | 413 5 | − | 413 10 | x | − | 413 10 | x | × | 2 | + | 413 10 | x | x |
| x | = | 413 5 | − | 413 10 | x | − | 413 5 | x | + | 413 10 | x | x |
| x | = | 413 5 | − | 1239 10 | x | + | 413 10 | x | x |