| X | − | ( | X | − | 5000 | ) | × | 3 100 | = | 5655 |
| Left side of the equation = | X | − | X | × | 3 100 | + | 5000 | × | 3 100 |
| = | X | − | X | × | 3 100 | + | 150 |
| = | 97 100 | X | + | 150 |
97 100 | X | + | 150 | = | 5655 |
97 100 | X | = | 5655 | − | 150 |
97 100 | X | = | 5505 |
| X | = | 5505 | ÷ | 97 100 |
| = | 5505 | × | 100 97 |
| X | = | 550500 97 |
| X | = | 5675.257732 |