| 600 | X | ÷ | ( | 2400 | − | 600 | X | ) | = | 10 100 |
| Multiply both sides of the equation by: | ( | 2400 | − | 600 | X | ) |
| 600 | X | = | 10 100 | ( | 2400 | − | 600 | X | ) |
| 600 | X | = | 10 100 | × | 2400 | − | 10 100 | × | 600 | X |
| 600 | X | = | 240 | − | 60 | X |
| 600 | X | + | 60 | X | = | 240 |
| 660 | X | = | 240 |
| X | = | 240 | ÷ | 660 |
| = | 240 | × | 1 660 |
| = | 4 | × | 1 11 |
| X | = | 4 11 |
| X | = | 0.363636 |