| X | − | ( | X | × | 6 100 | ) | + | ( | X | × | 59 500 | ) | = | 42340 |
| Left side of the equation = | X | − | X | × | 6 100 | + | ( | X | × | 59 500 | ) |
| = | 47 50 | X | + | ( | X | × | 59 500 | ) |
| = | 47 50 | X | + | X | × | 59 500 |
| = | 529 500 | X |
529 500 | X | = | 42340 |
| X | = | 42340 | ÷ | 529 500 |
| = | 42340 | × | 500 529 |
| X | = | 21170000 529 |
| X | = | 40018.903592 |