| y | ÷ | 3 | − | ( | y | − | 1 | ) | ÷ | 2 | = | 1 | − | 2 | ( | y | + | 3 | ) |
| 方程左边 = | 1 3 | y | − | y | × | 1 2 | + | 1 | × | 1 2 |
| = | 1 3 | y | − | y | × | 1 2 | + | 1 2 |
| = | - | 1 6 | y | + | 1 2 |
| - | 1 6 | y | + | 1 2 | = | 1 | − | 2 | ( | y | + | 3 | ) |
| 方程右边 = | 1 | − | 2 | y | − | 2 | × | 3 |
| = | 1 | − | 2 | y | − | 6 |
| = | - | 5 | − | 2 | y |
| - | 1 6 | y | + | 1 2 | = | - | 5 | − | 2 | y |
| - | 1 6 | y | + | 2 | y | = | - | 5 | − | 1 2 |
11 6 | y | = | - | 5 | − | 1 2 |
11 6 | y | = | - | 11 2 |
| y | = | - | 11 2 | ÷ | 11 6 |
| = | - | 11 2 | × | 6 11 |
| = | - | 1 | × | 3 |
| y | = | - | 3 |