| ( | x | − | 1 | ) | ÷ | ( | x | − | 2 | ) | + | ( | x | − | 8 | ) | ÷ | ( | x | − | 9 | ) | = | ( | x | − | 2 | ) | ÷ | ( | x | − | 3 | ) | + | ( | x | − | 7 | ) | ÷ | ( | x | − | 8 | ) |
| 方程两边同时乘以: | ( | x | − | 2 | ) | , | ( | x | − | 3 | ) |
| ( | x | − | 1 | ) | ( | x | − | 3 | ) | + | ( | x | − | 8 | ) | ÷ | ( | x | − | 9 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) | = | ( | x | − | 2 | ) | ( | x | − | 2 | ) | + | ( | x | − | 7 | ) | ÷ | ( | x | − | 8 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) |
| x | ( | x | − | 3 | ) | − | 1 | ( | x | − | 3 | ) | + | ( | x | − | 8 | ) | ÷ | ( | x | − | 9 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) | = | ( | x | − | 2 | ) | ( | x | − | 2 | ) | + | ( | x | − | 7 | ) | ÷ | ( | x | − | 8 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) |
| x | ( | x | − | 3 | ) | − | 1 | ( | x | − | 3 | ) | + | ( | x | − | 8 | ) | ÷ | ( | x | − | 9 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) | = | x | ( | x | − | 2 | ) | − | 2 | ( | x | − | 2 | ) | + | ( | x | − | 7 | ) | ÷ | ( | x | − | 8 | ) | × | ( | x | − | 2 | ) | ( | x | − | 3 | ) |
| 方程两边同时乘以: | ( | x | − | 9 | ) | , | ( | x | − | 8 | ) |
| x | ( | x | − | 3 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 1 | ( | x | − | 3 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | + | ( | x | − | 8 | ) | ( | x | − | 2 | ) | ( | x | − | 3 | ) | ( | x | − | 8 | ) | = | x | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 2 | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | + | ( | x | − | 7 | ) | ( | x | − | 2 | ) | ( | x | − | 3 | ) | ( | x | − | 9 | ) |
| x | x | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | x | × | 3 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 1 | ( | x | − | 3 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | = | x | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 2 | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | + | ( | x | − | 7 | ) | ( | x | − | 2 | ) | ( | x | − | 3 | ) | ( | x | − | 9 | ) |
| x | x | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | x | × | 3 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 1 | ( | x | − | 3 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) | = | x | x | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 2 | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) |
| x | x | x | ( | x | − | 8 | ) | − | x | x | × | 9 | ( | x | − | 8 | ) | − | x | × | 3 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | = | x | x | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | − | 2 | ( | x | − | 2 | ) | ( | x | − | 9 | ) | ( | x | − | 8 | ) |
| x | x | x | ( | x | − | 8 | ) | − | x | x | × | 9 | ( | x | − | 8 | ) | − | x | × | 3 | ( | x | − | 9 | ) | ( | x | − | 8 | ) | = | x | x | x | ( | x | − | 8 | ) | − | x | x | × | 9 | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 9 | ) | ( | x | − | 8 | ) |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | ( | x | − | 8 | ) | = | x | x | x | ( | x | − | 8 | ) | − | x | x | × | 9 | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 9 | ) | ( | x | − | 8 | ) |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | ( | x | − | 8 | ) | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | ( | x | − | 8 | ) |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | ( | x | − | 8 | ) |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x | = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 9 | x |
| x1= | 11 2 |