| 3 | x | + | 1 | ÷ | 2 | = | 2 | ( | x | + | 1 | ) | ÷ | 3 |
| 方程左边 = | 3 | x | + | 1 2 |
| 3 | x | + | 1 2 | = | 2 | ( | x | + | 1 | ) | ÷ | 3 |
| 方程右边 = | 2 3 | ( | x | + | 1 | ) |
| 3 | x | + | 1 2 | = | 2 3 | ( | x | + | 1 | ) |
| 方程右边 = | 2 3 | x | + | 2 3 | × | 1 |
| = | 2 3 | x | + | 2 3 |
| 3 | x | + | 1 2 | = | 2 3 | x | + | 2 3 |
| 3 | x | − | 2 3 | x | = | 2 3 | − | 1 2 |
7 3 | x | = | 2 3 | − | 1 2 |
7 3 | x | = | 1 6 |
| x | = | 1 6 | ÷ | 7 3 |
| = | 1 6 | × | 3 7 |
| = | 1 2 | × | 1 7 |
| x | = | 1 14 |
| x | = | 0.071429 |