| ( | x | − | 2 | ) | ( | x | − | 756 25 | ÷ | x | − | 2 5 | ) | = | 2268 25 |
| x | ( | x | − | 756 25 | ÷ | x | − | 2 5 | ) | − | 2 | ( | x | − | 756 25 | ÷ | x | − | 2 5 | ) | = | 2268 25 |
| x | x | − | x | × | 756 25 | ÷ | x | − | x | × | 2 5 | − | 2 | ( | x | − | 756 25 | ÷ | x | − | 2 5 | ) | = | 2268 25 |
| x | x | − | 1 | × | 756 25 | ÷ | 1 | − | 2 5 | x | − | 2 | x | + | 2 | × | 756 25 | ÷ | x | = | 2268 25 |
| x | x | − | 756 25 | − | 2 5 | x | − | 2 | x | + | 1512 25 | ÷ | x | + | 4 5 | = | 2268 25 |
| x | x | − | 736 25 | − | 12 5 | x | + | 1512 25 | ÷ | x | = | 2268 25 |
| 方程两边同时乘以: | x |
| x | x | x | − | 736 25 | x | − | 12 5 | x | x | + | 1512 25 | = | 2268 25 | x |