| 1 | ÷ | 4 | × | x | − | 1 | ÷ | 4 | + | 1 | = | 2 | ÷ | 5 | × | x | − | 6 | ÷ | 5 |
| 方程左边 = | 1 4 | x | − | 1 4 | + | 1 |
| = | 1 4 | x | + | 3 4 |
1 4 | x | + | 3 4 | = | 2 | ÷ | 5 | × | x | − | 6 | ÷ | 5 |
| 方程右边 = | 2 5 | x | − | 6 5 |
1 4 | x | + | 3 4 | = | 2 5 | x | − | 6 5 |
1 4 | x | − | 2 5 | x | = | - | 6 5 | − | 3 4 |
| - | 3 20 | x | = | - | 6 5 | − | 3 4 |
| - | 3 20 | x | = | - | 39 20 |
39 20 | = | 3 20 | x |
3 20 | x | = | 39 20 |
| x | = | 39 20 | ÷ | 3 20 |
| = | 39 20 | × | 20 3 |
| = | 13 | × | 1 |
| x | = | 13 |