| 3 | − | ( | 2 | x | − | 1 | ) | ÷ | 3 | = | ( | 4 | − | 3 | x | ) | ÷ | 5 | − | x |
| 方程左边 = | 3 | − | 2 | x | × | 1 3 | + | 1 | × | 1 3 |
| = | 3 | − | 2 3 | x | + | 1 3 |
| = | 10 3 | − | 2 3 | x |
10 3 | − | 2 3 | x | = | ( | 4 | − | 3 | x | ) | ÷ | 5 | − | x |
| 方程右边 = | 4 | × | 1 5 | − | 3 | x | × | 1 5 | − | x |
| = | 4 5 | − | 3 5 | x | − | x |
| = | 4 5 | − | 8 5 | x |
10 3 | − | 2 3 | x | = | 4 5 | − | 8 5 | x |
| - | 2 3 | x | + | 8 5 | x | = | 4 5 | − | 10 3 |
14 15 | x | = | 4 5 | − | 10 3 |
14 15 | x | = | - | 38 15 |
| x | = | - | 38 15 | ÷ | 14 15 |
| = | - | 38 15 | × | 15 14 |
| = | - | 19 | × | 1 7 |
| x | = | - | 19 7 |
| x | = | - 2.714286 |