| X | − | ( | X | ÷ | 6 | × | 10 100 | − | 210 | ) | × | 6 | = | 17460 |
| Left side of the equation = | X | − | X | ÷ | 6 | × | 10 100 | × | 6 | + | 210 | × | 6 |
| = | X | − | X | × | 1 10 | + | 1260 |
| = | 9 10 | X | + | 1260 |
9 10 | X | + | 1260 | = | 17460 |
9 10 | X | = | 17460 | − | 1260 |
9 10 | X | = | 16200 |
| X | = | 16200 | ÷ | 9 10 |
| = | 16200 | × | 10 9 |
| = | 1800 | × | 10 |
| X | = | 18000 |