| 100000 | = | X | − | 56000 | − | ( | 3 100 | ( | X | − | 56000 | ) | ) |
| Right side of the equation = | X | − | 56000 | − | 3 100 | ( | X | − | 56000 | ) |
| = | X | − | 56000 | − | 3 100 | X | + | 3 100 | × | 56000 |
| = | X | − | 56000 | − | 3 100 | X | + | 1680 |
| = | 97 100 | X | − | 54320 |
| 100000 | = | 97 100 | X | − | 54320 |
| - | 97 100 | X | = | - | 54320 | − | 100000 |
| - | 97 100 | X | = | - | 154320 |
| 154320 | = | 97 100 | X |
97 100 | X | = | 154320 |
| X | = | 154320 | ÷ | 97 100 |
| = | 154320 | × | 100 97 |
| X | = | 15432000 97 |
| X | = | 159092.783505 |