| ( | 2 | x | + | 2 | ) | ÷ | ( | 3 | x | − | 5 | ) | = | 4 |
| 方程两边同时乘以: | ( | 3 | x | − | 5 | ) |
| ( | 2 | x | + | 2 | ) | = | 4 | ( | 3 | x | − | 5 | ) |
| 2 | x | + | 2 | = | 4 | ( | 3 | x | − | 5 | ) |
| 2 | x | + | 2 | = | 4 | × | 3 | x | − | 4 | × | 5 |
| 2 | x | + | 2 | = | 12 | x | − | 20 |
| 2 | x | − | 12 | x | = | - | 20 | − | 2 |
| - | 10 | x | = | - | 20 | − | 2 |
| - | 10 | x | = | - | 22 |
| 22 | = | 10 | x |
| 10 | x | = | 22 |
| x | = | 22 | ÷ | 10 |
| = | 22 | × | 1 10 |
| = | 11 | × | 1 5 |
| x | = | 11 5 |
| x | = | 2.2 |