| ( | 360 | ÷ | ( | x | − | 3 | ) | ) | − | ( | 360 | ÷ | x | ) | = | 6 |
| 360 | ÷ | ( | x | − | 3 | ) | − | ( | 360 | ÷ | x | ) | = | 6 |
| 方程两边同时乘以: | ( | x | − | 3 | ) |
| 360 | − | ( | 360 | ÷ | x | ) | ( | x | − | 3 | ) | = | 6 | ( | x | − | 3 | ) |
| 360 | − | 360 | ÷ | x | × | ( | x | − | 3 | ) | = | 6 | ( | x | − | 3 | ) |
| 360 | − | 360 | ÷ | x | × | ( | x | − | 3 | ) | = | 6 | x | − | 6 | × | 3 |
| 360 | − | 360 | ÷ | x | × | ( | x | − | 3 | ) | = | 6 | x | − | 18 |
| 方程两边同时乘以: | x |
| 360 | x | − | 360 | ( | x | − | 3 | ) | = | 6 | x | x | − | 18 | x |
| 360 | x | − | 360 | x | + | 360 | × | 3 | = | 6 | x | x | − | 18 | x |
| 360 | x | − | 360 | x | + | 1080 | = | 6 | x | x | − | 18 | x |
| 0 | x | + | 1080 | = | 6 | x | x | − | 18 | x |