| 1500 | X | = | 3000000 | + | ( | 600 | + | 15 | ) | X |
| Right side of the equation = | 3000000 | + | 600 | X | + | 15 | X |
| = | 3000000 | + | 615 | X |
| 1500 | X | = | 3000000 | + | 615 | X |
| 1500 | X | − | 615 | X | = | 3000000 |
| 885 | X | = | 3000000 |
| X | = | 3000000 | ÷ | 885 |
| = | 3000000 | × | 1 885 |
| = | 200000 | × | 1 59 |
| X | = | 200000 59 |
| X | = | 3389.830508 |