| ( | x | + | 5 2 | ) | ÷ | ( | x | − | 5 2 | ) | = | 6 |
| 方程两边同时乘以: | ( | x | − | 5 2 | ) |
| ( | x | + | 5 2 | ) | = | 6 | ( | x | − | 5 2 | ) |
| x | + | 5 2 | = | 6 | ( | x | − | 5 2 | ) |
| x | + | 5 2 | = | 6 | x | − | 6 | × | 5 2 |
| x | + | 5 2 | = | 6 | x | − | 15 |
| x | − | 6 | x | = | - | 15 | − | 5 2 |
| - | 5 | x | = | - | 15 | − | 5 2 |
| - | 5 | x | = | - | 35 2 |
35 2 | = | 5 | x |
| 5 | x | = | 35 2 |
| x | = | 35 2 | ÷ | 5 |
| = | 35 2 | × | 1 5 |
| = | 7 2 | × | 1 |
| x | = | 7 2 |
| x | = | 3.5 |