| x | ÷ | 3533 1000 | − | x | ÷ | 2123 1000 | = | 15 |
| Left side of the equation = | - | 1410000 7500559 | x |
| - | 1410000 7500559 | x | = | 15 |
| - | 15 | = | 1410000 7500559 | x |
1410000 7500559 | x | = | - | 15 |
| x | = | - | 15 | ÷ | 1410000 7500559 |
| = | - | 15 | × | 7500559 1410000 |
| = | - | 1 | × | 7500559 94000 |
| x | = | - | 7500559 94000 |
| x | = | - 79.793181 |