| 1 | ÷ | 3 | × | ( | y | − | 1 | ) | = | 3 | × | 24 5 |
| 方程左边 = | 1 3 | ( | y | − | 1 | ) |
1 3 | ( | y | − | 1 | ) | = | 3 | × | 24 5 |
| 方程左边 = | 1 3 | y | − | 1 3 | × | 1 |
| = | 1 3 | y | − | 1 3 |
1 3 | y | − | 1 3 | = | 3 | × | 24 5 |
| 方程右边 = | 72 5 |
1 3 | y | − | 1 3 | = | 72 5 |
1 3 | y | = | 72 5 | + | 1 3 |
1 3 | y | = | 221 15 |
| y | = | 221 15 | ÷ | 1 3 |
| = | 221 15 | × | 3 |
| = | 221 5 | × | 1 |
| y | = | 221 5 |
| y | = | 44.2 |