| 150 | ÷ | ( | x | + | 10 | ) | + | 1 | ÷ | 2 | = | 150 | ÷ | x |
| 方程两边同时乘以: | ( | x | + | 10 | ) | , | x |
| 150 | x | + | 1 | ÷ | 2 | × | ( | x | + | 10 | ) | x | = | 150 | ( | x | + | 10 | ) |
| 150 | x | + | 1 | ÷ | 2 | × | x | x | + | 1 | ÷ | 2 | × | 10 | x | = | 150 | ( | x | + | 10 | ) |
| 150 | x | + | 1 | ÷ | 2 | × | x | x | + | 1 | ÷ | 2 | × | 10 | x | = | 150 | x | + | 150 | × | 10 |
| 150 | x | + | 1 2 | x | x | + | 5 | x | = | 150 | x | + | 1500 |
| 155 | x | + | 1 2 | x | x | = | 150 | x | + | 1500 |