| X | − | 15 | − | ( | X | − | 15 | ) | ÷ | 211 25 | × | 3 2 | = | 20591 100 |
| Left side of the equation = | X | − | 15 | − | ( | X | − | 15 | ) | × | 75 422 |
| X | − | 15 | − | ( | X | − | 15 | ) | × | 75 422 | = | 20591 100 |
| Left side of the equation = | X | − | 15 | − | X | × | 75 422 | + | 15 | × | 75 422 |
| = | X | − | 15 | − | X | × | 75 422 | + | 1125 422 |
| = | 347 422 | X | − | 5205 422 |
347 422 | X | − | 5205 422 | = | 20591 100 |
347 422 | X | = | 20591 100 | + | 5205 422 |
347 422 | X | = | 4604951 21100 |
| X | = | 4604951 21100 | ÷ | 347 422 |
| = | 4604951 21100 | × | 422 347 |
| = | 4604951 10550 | × | 211 347 |
| X | = | 971644661 3660850 |
| X | = | 4604951 17350 |
| X | = | 265.415043 |