| 15000 | + | W | − | W | × | 8 100 | ÷ | 4 | = | 4500 |
| Left side of the equation = | 15000 | + | W | − | W | × | 1 50 |
| = | 15000 | + | 49 50 | W |
| 15000 | + | 49 50 | W | = | 4500 |
49 50 | W | = | 4500 | − | 15000 |
49 50 | W | = | - | 10500 |
| W | = | - | 10500 | ÷ | 49 50 |
| = | - | 10500 | × | 50 49 |
| = | - | 1500 | × | 50 7 |
| W | = | - | 75000 7 |
| W | = | - 10714.285714 |