| 5000 | × | 19 20 | = | x | − | 11 | ( | ( | 9 10 | x | ) | ÷ | 12 | ) |
| Left side of the equation = | 4750 |
| 4750 | = | x | − | 11 | ( | ( | 9 10 | x | ) | ÷ | 12 | ) |
| Right side of the equation = | x | − | 11 | ( | 9 10 | x | ) | ÷ | 12 |
| = | x | − | 11 12 | ( | 9 10 | x | ) |
| = | x | − | 11 12 | × | 9 10 | x |
| = | x | − | 33 40 | x |
| = | 7 40 | x |
| 4750 | = | 7 40 | x |
| - | 7 40 | x | = | - | 4750 |
| 4750 | = | 7 40 | x |
7 40 | x | = | 4750 |
| x | = | 4750 | ÷ | 7 40 |
| = | 4750 | × | 40 7 |
| x | = | 190000 7 |
| x | = | 27142.857143 |