| 5 | ( | y | + | 12 | ÷ | 5 | ) | ÷ | 16 | = | 2 | y | ÷ | 5 |
| 方程左边 = | 5 16 | ( | y | + | 12 | ÷ | 5 | ) |
5 16 | ( | y | + | 12 | ÷ | 5 | ) | = | 2 | y | ÷ | 5 |
| 方程左边 = | 5 16 | y | + | 5 16 | × | 12 | ÷ | 5 |
| = | 5 16 | y | + | 3 4 |
5 16 | y | + | 3 4 | = | 2 | y | ÷ | 5 |
| 方程右边 = | 2 5 | y |
5 16 | y | + | 3 4 | = | 2 5 | y |
5 16 | y | − | 2 5 | y | = | - | 3 4 |
| - | 7 80 | y | = | - | 3 4 |
3 4 | = | 7 80 | y |
7 80 | y | = | 3 4 |
| y | = | 3 4 | ÷ | 7 80 |
| = | 3 4 | × | 80 7 |
| = | 3 | × | 20 7 |
| y | = | 60 7 |
| y | = | 8.571429 |