| - | 5 | = | 5 | x | ÷ | 6 | + | x | ( | x | − | 1 | ) | ÷ | 2 | × | ( | - | 1 | ÷ | 6 | ) |
| 方程右边 = | 5 6 | x | + | x | ( | x | − | 1 | ) | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| - | 5 | = | 5 6 | x | + | x | ( | x | − | 1 | ) | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| 方程右边 = | 5 6 | x | + | x | x | × | 1 2 | ( | - | 1 | ÷ | 6 | ) | − | x | × | 1 | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| = | 5 6 | x | + | x | x | × | 1 2 | ( | - | 1 | ÷ | 6 | ) | − | x | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| = | 5 6 | x | − | x | x | × | 1 2 | × | 1 | ÷ | 6 | − | x | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| = | 5 6 | x | − | x | x | × | 1 12 | − | x | × | 1 2 | ( | - | 1 | ÷ | 6 | ) |
| = | 5 6 | x | − | x | x | × | 1 12 | + | x | × | 1 2 | × | 1 | ÷ | 6 |
| = | 5 6 | x | − | x | x | × | 1 12 | + | x | × | 1 12 |
| = | 11 12 | x | − | x | x | × | 1 12 |
| - | 5 | = | 11 12 | x | − | x | x | × | 1 12 |