| 1 | ÷ | x | + | 1 | ÷ | ( | x | + | 50 | ) | + | 1 | ÷ | ( | x | + | 250 | ) | = | 1 | ÷ | ( | x | + | 50 | ) |
| 方程两边同时乘以: | x | , | ( | x | + | 50 | ) |
| 1 | ( | x | + | 50 | ) | + | 1 | x | + | 1 | ÷ | ( | x | + | 250 | ) | × | x | ( | x | + | 50 | ) | = | 1 | x |
| 1 | x | + | 1 | × | 50 | + | 1 | x | + | 1 | ÷ | ( | x | + | 250 | ) | × | x | ( | x | + | 50 | ) | = | 1 | x |
| 1 | x | + | 50 | + | 1 | x | + | 1 | ÷ | ( | x | + | 250 | ) | × | x | ( | x | + | 50 | ) | = | 1 | x |
| 2 | x | + | 50 | + | 1 | ÷ | ( | x | + | 250 | ) | × | x | ( | x | + | 50 | ) | = | 1 | x |
| 方程两边同时乘以: | ( | x | + | 250 | ) |
| 2 | x | ( | x | + | 250 | ) | + | 50 | ( | x | + | 250 | ) | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | ( | x | + | 250 | ) |
| 2 | x | x | + | 2 | x | × | 250 | + | 50 | ( | x | + | 250 | ) | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | ( | x | + | 250 | ) |
| 2 | x | x | + | 2 | x | × | 250 | + | 50 | ( | x | + | 250 | ) | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | x | + | 1 | x | × | 250 |
| 2 | x | x | + | 500 | x | + | 50 | ( | x | + | 250 | ) | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 500 | x | + | 50 | x | + | 50 | × | 250 | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 500 | x | + | 50 | x | + | 12500 | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 550 | x | + | 12500 | + | 1 | x | ( | x | + | 50 | ) | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 550 | x | + | 12500 | + | 1 | x | x | + | 1 | x | × | 50 | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 550 | x | + | 12500 | + | 1 | x | x | + | 50 | x | = | 1 | x | x | + | 250 | x |
| 2 | x | x | + | 600 | x | + | 12500 | + | 1 | x | x | = | 1 | x | x | + | 250 | x |