| 2 | ÷ | x | + | 2 | ÷ | ( | 19 10 | x | − | 2 | ) | = | 3 |
| 方程两边同时乘以: | x |
| 2 | + | 2 | ÷ | ( | 19 10 | x | − | 2 | ) | × | x | = | 3 | x |
| 方程两边同时乘以: | ( | 19 10 | x | − | 2 | ) |
| 2 | ( | 19 10 | x | − | 2 | ) | + | 2 | x | = | 3 | x | ( | 19 10 | x | − | 2 | ) |
| 2 | × | 19 10 | x | − | 2 | × | 2 | + | 2 | x | = | 3 | x | ( | 19 10 | x | − | 2 | ) |
| 2 | × | 19 10 | x | − | 2 | × | 2 | + | 2 | x | = | 3 | x | × | 19 10 | x | − | 3 | x | × | 2 |
19 5 | x | − | 4 | + | 2 | x | = | 57 10 | x | x | − | 6 | x |
29 5 | x | − | 4 | = | 57 10 | x | x | − | 6 | x |