| ( | 2 | ÷ | x | ) | + | 1 | ÷ | ( | x | + | 6 | ) | = | 1 | ÷ | ( | x | + | 4 | ) |
| 方程两边同时乘以: | ( | x | + | 6 | ) | , | ( | x | + | 4 | ) |
| ( | 2 | ÷ | x | ) | ( | x | + | 6 | ) | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | = | 1 | ( | x | + | 6 | ) |
| 2 | ÷ | x | × | ( | x | + | 6 | ) | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | = | 1 | ( | x | + | 6 | ) |
| 2 | ÷ | x | × | ( | x | + | 6 | ) | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | = | 1 | x | + | 1 | × | 6 |
| 2 | ÷ | x | × | ( | x | + | 6 | ) | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | = | 1 | x | + | 6 |
| 方程两边同时乘以: | x |
| 2 | ( | x | + | 6 | ) | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | ( | x | + | 4 | ) | + | 2 | × | 6 | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | ( | x | + | 4 | ) | + | 12 | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 2 | x | × | 4 | + | 12 | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 8 | x | + | 12 | ( | x | + | 4 | ) | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 8 | x | + | 12 | x | + | 12 | × | 4 | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 8 | x | + | 12 | x | + | 48 | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 20 | x | + | 48 | + | 1 | ( | x | + | 4 | ) | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 20 | x | + | 48 | + | 1 | x | x | + | 1 | × | 4 | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 20 | x | + | 48 | + | 1 | x | x | + | 4 | x | = | 1 | x | x | + | 6 | x |
| 2 | x | x | + | 24 | x | + | 48 | + | 1 | x | x | = | 1 | x | x | + | 6 | x |