| 2 | ( | 1 | ÷ | 6 | − | 1 | ÷ | 3 | × | ( | 1 | − | 2 | y | ) | ) | = | 1 | ÷ | 2 | − | ( | y | − | 1 | ) | ÷ | 3 |
| 方程左边 = | 2 | × | 1 | ÷ | 6 | − | 2 | × | 1 | ÷ | 3 | × | ( | 1 | − | 2 | y | ) |
| = | 1 3 | − | 2 3 | ( | 1 | − | 2 | y | ) |
| = | 1 3 | − | 2 3 | × | 1 | + | 2 3 | × | 2 | y |
| = | 1 3 | − | 2 3 | + | 4 3 | y |
| = | - | 1 3 | + | 4 3 | y |
| - | 1 3 | + | 4 3 | y | = | 1 | ÷ | 2 | − | ( | y | − | 1 | ) | ÷ | 3 |
| 方程右边 = | 1 2 | − | ( | y | − | 1 | ) | × | 1 3 |
| - | 1 3 | + | 4 3 | y | = | 1 2 | − | ( | y | − | 1 | ) | × | 1 3 |
| 方程右边 = | 1 2 | − | y | × | 1 3 | + | 1 | × | 1 3 |
| = | 1 2 | − | y | × | 1 3 | + | 1 3 |
| = | 5 6 | − | 1 3 | y |
| - | 1 3 | + | 4 3 | y | = | 5 6 | − | 1 3 | y |
4 3 | y | + | 1 3 | y | = | 5 6 | + | 1 3 |
5 3 | y | = | 5 6 | + | 1 3 |
5 3 | y | = | 7 6 |
| y | = | 7 6 | ÷ | 5 3 |
| = | 7 6 | × | 3 5 |
| = | 7 2 | × | 1 5 |
| y | = | 7 10 |
| y | = | 0.7 |