| ( | x | + | 4 | ) | ÷ | 4 | = | ( | 2 | x | − | 1 | ) | ÷ | 3 |
| 方程左边 = | x | × | 1 4 | + | 4 | × | 1 4 |
| = | x | × | 1 4 | + | 1 |
1 4 | x | + | 1 | = | ( | 2 | x | − | 1 | ) | ÷ | 3 |
| 方程右边 = | 2 | x | × | 1 3 | − | 1 | × | 1 3 |
| = | 2 3 | x | − | 1 3 |
1 4 | x | + | 1 | = | 2 3 | x | − | 1 3 |
1 4 | x | − | 2 3 | x | = | - | 1 3 | − | 1 |
| - | 5 12 | x | = | - | 1 3 | − | 1 |
| - | 5 12 | x | = | - | 4 3 |
4 3 | = | 5 12 | x |
5 12 | x | = | 4 3 |
| x | = | 4 3 | ÷ | 5 12 |
| = | 4 3 | × | 12 5 |
| = | 4 | × | 4 5 |
| x | = | 16 5 |
| x | = | 3.2 |