| 175 | − | 25 2 | ( | W | ÷ | 11 10 | ) | = | 70 | + | 5 | W |
| 方程左边 = | 175 | − | 25 2 | W | ÷ | 11 10 |
| = | 175 | − | 125 11 | W |
| 175 | − | 125 11 | W | = | 70 | + | 5 | W |
| - | 125 11 | W | − | 5 | W | = | 70 | − | 175 |
| - | 180 11 | W | = | 70 | − | 175 |
| - | 180 11 | W | = | - | 105 |
| 105 | = | 180 11 | W |
180 11 | W | = | 105 |
| W | = | 105 | ÷ | 180 11 |
| = | 105 | × | 11 180 |
| = | 7 | × | 11 12 |
| W | = | 77 12 |
| W | = | 6.416667 |