| 3 | ÷ | ( | i | − | 1 | ) | + | 1 | ÷ | i | = | 13 2 |
| 方程两边同时乘以: | ( | i | − | 1 | ) |
| 3 | + | 1 | ÷ | i | × | ( | i | − | 1 | ) | = | 13 2 | ( | i | − | 1 | ) |
| 3 | + | 1 | ÷ | i | × | i | − | 1 | ÷ | i | × | 1 | = | 13 2 | ( | i | − | 1 | ) |
| 3 | + | 1 | ÷ | i | × | i | − | 1 | ÷ | i | × | 1 | = | 13 2 | i | − | 13 2 | × | 1 |
| 3 | + | 1 | ÷ | i | × | i | − | 1 | ÷ | i | = | 13 2 | i | − | 13 2 |
| 方程两边同时乘以: | i |
| 3 | i | + | 1 | ÷ | 1 | × | 1 | i | − | 1 | = | 13 2 | i | i | − | 13 2 | i |