| X | − | ( | X | − | 5000 | ) | × | 3 100 | = | 342577 50 |
| 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 | = | 342577 50 |
97 100 | X | = | 342577 50 | − | 150 |
97 100 | X | = | 335077 50 |
| X | = | 335077 50 | ÷ | 97 100 |
| = | 335077 50 | × | 100 97 |
| = | 335077 | × | 2 97 |
| X | = | 670154 97 |
| X | = | 6908.804124 |