1 2 | ( | 2 | − | ( | 8 | ÷ | ( | 4 | − | y | ) | + | 2 | ) | ) | y | = | 46 |
1 2 | × | 2 | y | − | 1 2 | ( | 8 | ÷ | ( | 4 | − | y | ) | + | 2 | ) | y | = | 46 |
| 1 | y | − | 1 2 | ( | 8 | ÷ | ( | 4 | − | y | ) | + | 2 | ) | y | = | 46 |
| 1 | y | − | 1 2 | × | 8 | ÷ | ( | 4 | − | y | ) | × | y | − | 1 2 | × | 2 | y | = | 46 |
| 1 | y | − | 4 | ÷ | ( | 4 | − | y | ) | × | y | − | 1 | y | = | 46 |
| 0 | y | − | 4 | ÷ | ( | 4 | − | y | ) | × | y | = | 46 |
| 方程两边同时乘以: | ( | 4 | − | y | ) |
| - | 4 | y | = | 46 | ( | 4 | − | y | ) |
| - | 4 | y | = | 46 | × | 4 | − | 46 | y |
| - | 4 | y | = | 184 | − | 46 | y |
| - | 4 | y | + | 46 | y | = | 184 |
| 42 | y | = | 184 |
| y | = | 184 | ÷ | 42 |
| = | 184 | × | 1 42 |
| = | 92 | × | 1 21 |
| y | = | 92 21 |
| y | = | 4.380952 |