| ( | 1533 20 | − | x | ) | ÷ | 1533 20 | = | 13 250 |
| Left side of the equation = | 1533 20 | × | 20 1533 | − | x | × | 20 1533 |
| = | 1 | − | x | × | 20 1533 |
| 1 | − | 20 1533 | x | = | 13 250 |
| - | 20 1533 | x | = | 13 250 | − | 1 |
| - | 20 1533 | x | = | - | 237 250 |
237 250 | = | 20 1533 | x |
20 1533 | x | = | 237 250 |
| x | = | 237 250 | ÷ | 20 1533 |
| = | 237 250 | × | 1533 20 |
| x | = | 363321 5000 |
| x | = | 72.6642 |