| 60 | − | 5 | t | = | 2 | ÷ | 3 | × | ( | 60 | − | 5 | t | ) |
| 方程右边 = | 2 3 | ( | 60 | − | 5 | t | ) |
| 60 | − | 5 | t | = | 2 3 | ( | 60 | − | 5 | t | ) |
| 方程右边 = | 2 3 | × | 60 | − | 2 3 | × | 5 | t |
| = | 40 | − | 10 3 | t |
| 60 | − | 5 | t | = | 40 | − | 10 3 | t |
| - | 5 | t | + | 10 3 | t | = | 40 | − | 60 |
| - | 5 3 | t | = | 40 | − | 60 |
| - | 5 3 | t | = | - | 20 |
| 20 | = | 5 3 | t |
5 3 | t | = | 20 |
| t | = | 20 | ÷ | 5 3 |
| = | 20 | × | 3 5 |
| = | 4 | × | 3 |
| t | = | 12 |