| ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | ÷ | ( | 242 | − | x | ) | = | 2 5 |
| 方程两边同时乘以: | ( | 242 | − | x | ) |
| ( | 242 | − | x | ) | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 2 5 | ( | 242 | − | x | ) |
| 242 | ( | 242 | − | x | ) | − | x | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 2 5 | ( | 242 | − | x | ) |
| 242 | ( | 242 | − | x | ) | − | x | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 2 5 | × | 242 | − | 2 5 | x |
| 242 | ( | 242 | − | x | ) | − | x | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 484 5 | − | 2 5 | x |
| 242 | × | 242 | − | 242 | x | − | x | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 484 5 | − | 2 5 | x |
| 58564 | − | 242 | x | − | x | ( | 242 | − | x | ) | − | ( | 44 | − | 1 10 | x | ) | = | 484 5 | − | 2 5 | x |
| 58564 | − | 242 | x | − | x | × | 242 | + | x | x | − | ( | 44 | − | 1 10 | x | ) | = | 484 5 | − | 2 5 | x |
| 58564 | − | 484 | x | + | x | x | − | ( | 44 | − | 1 10 | x | ) | = | 484 5 | − | 2 5 | x |
| 58564 | − | 484 | x | + | x | x | − | 44 | + | 1 10 | x | = | 484 5 | − | 2 5 | x |
| 58520 | − | 4839 10 | x | + | x | x | = | 484 5 | − | 2 5 | x |