| ( | 11 2 | + | 2 | x | ) | ÷ | 49 5 | ÷ | x | ÷ | ( | 11 2 | + | x | ) | × | 900 | = | 1 |
| 方程两边同时乘以: | x |
| ( | 11 2 | + | 2 | x | ) | ÷ | 49 5 | ÷ | ( | 11 2 | + | x | ) | × | 900 | = | 1 | x |
11 2 | ÷ | 49 5 | ÷ | ( | 11 2 | + | x | ) | × | 900 | + | 2 | x | ÷ | 49 5 | ÷ | ( | 11 2 | + | x | ) | × | 900 | = | 1 | x |
24750 49 | ÷ | ( | 11 2 | + | x | ) | + | 9000 49 | x | ÷ | ( | 11 2 | + | x | ) | = | 1 | x |
| 方程两边同时乘以: | ( | 11 2 | + | x | ) |
24750 49 | + | 9000 49 | x | = | 1 | x | ( | 11 2 | + | x | ) |
24750 49 | + | 9000 49 | x | = | 1 | x | × | 11 2 | + | 1 | x | x |
24750 49 | + | 9000 49 | x | = | 11 2 | x | + | 1 | x | x |