| 1 | ÷ | ( | x | + | 1 10 | ) | + | 1 | ÷ | ( | x | + | 1 2 | ) | = | 1 | ÷ | ( | x | + | 1 | ) |
| 方程两边同时乘以: | ( | x | + | 1 10 | ) | , | ( | x | + | 1 | ) |
| 1 | ( | x | + | 1 | ) | + | 1 | ÷ | ( | x | + | 1 2 | ) | × | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | ( | x | + | 1 10 | ) |
| 1 | x | + | 1 | × | 1 | + | 1 | ÷ | ( | x | + | 1 2 | ) | × | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | ( | x | + | 1 10 | ) |
| 1 | x | + | 1 | × | 1 | + | 1 | ÷ | ( | x | + | 1 2 | ) | × | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | + | 1 | × | 1 10 |
| 1 | x | + | 1 | + | 1 | ÷ | ( | x | + | 1 2 | ) | × | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | + | 1 10 |
| 方程两边同时乘以: | ( | x | + | 1 2 | ) |
| 1 | x | ( | x | + | 1 2 | ) | + | 1 | ( | x | + | 1 2 | ) | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | ( | x | + | 1 2 | ) | + | 1 10 | ( | x | + | 1 2 | ) |
| 1 | x | x | + | 1 | x | × | 1 2 | + | 1 | ( | x | + | 1 2 | ) | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | ( | x | + | 1 2 | ) | + | 1 10 | ( | x | + | 1 2 | ) |
| 1 | x | x | + | 1 | x | × | 1 2 | + | 1 | ( | x | + | 1 2 | ) | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 1 | x | × | 1 2 | + | 1 10 | ( | x | + | 1 2 | ) |
| 1 | x | x | + | 1 2 | x | + | 1 | ( | x | + | 1 2 | ) | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 1 2 | x | + | 1 10 | ( | x | + | 1 2 | ) |
| 1 | x | x | + | 1 2 | x | + | 1 | x | + | 1 | × | 1 2 | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 1 2 | x | + | 1 10 | ( | x | + | 1 2 | ) |
| 1 | x | x | + | 1 2 | x | + | 1 | x | + | 1 | × | 1 2 | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 1 2 | x | + | 1 10 | x | + | 1 10 | × | 1 2 |
| 1 | x | x | + | 1 2 | x | + | 1 | x | + | 1 2 | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 1 2 | x | + | 1 10 | x | + | 1 20 |
| 1 | x | x | + | 3 2 | x | + | 1 2 | + | 1 | ( | x | + | 1 10 | ) | ( | x | + | 1 | ) | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 3 2 | x | + | 1 2 | + | 1 | x | ( | x | + | 1 | ) | + | 1 | × | 1 10 | ( | x | + | 1 | ) | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 3 2 | x | + | 1 2 | + | 1 | x | ( | x | + | 1 | ) | + | 1 10 | ( | x | + | 1 | ) | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 3 2 | x | + | 1 2 | + | 1 | x | x | + | 1 | x | × | 1 | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 3 2 | x | + | 1 2 | + | 1 | x | x | + | 1 | x | + | 1 10 | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 5 2 | x | + | 1 2 | + | 1 | x | x | + | 1 10 | ( | x | + | 1 | ) | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 5 2 | x | + | 1 2 | + | 1 | x | x | + | 1 10 | x | + | 1 10 | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 5 2 | x | + | 1 2 | + | 1 | x | x | + | 1 10 | x | + | 1 10 | = | 1 | x | x | + | 3 5 | x | + | 1 20 |
| 1 | x | x | + | 13 5 | x | + | 3 5 | + | 1 | x | x | = | 1 | x | x | + | 3 5 | x | + | 1 20 |