| ( | 41 50 | + | x | ) | ÷ | ( | 2 | + | x | ) | = | ( | x | − | 59 50 | ) | ÷ | x |
| 方程两边同时乘以: | ( | 2 | + | x | ) | , | x |
| ( | 41 50 | + | x | ) | x | = | ( | x | − | 59 50 | ) | ( | 2 | + | x | ) |
41 50 | x | + | x | x | = | ( | x | − | 59 50 | ) | ( | 2 | + | x | ) |
41 50 | x | + | x | x | = | x | ( | 2 | + | x | ) | − | 59 50 | ( | 2 | + | x | ) |
41 50 | x | + | x | x | = | x | × | 2 | + | x | x | − | 59 50 | ( | 2 | + | x | ) |
41 50 | x | + | x | x | = | 2 | x | + | x | x | − | 59 50 | × | 2 | − | 59 50 | x |
41 50 | x | + | x | x | = | 2 | x | + | x | x | − | 59 25 | − | 59 50 | x |
41 50 | x | + | x | x | = | 41 50 | x | + | x | x | − | 59 25 |