| X | = | 15000 | + | ( | 18000 | + | 2 | X | ÷ | 7 | ) | ÷ | 7 |
| Right side of the equation = | 15000 | + | 18000 | × | 1 7 | + | 2 | X | ÷ | 7 | × | 1 7 |
| = | 15000 | + | 18000 7 | + | 2 49 | X |
| = | 123000 7 | + | 2 49 | X |
| X | = | 123000 7 | + | 2 49 | X |
| X | − | 2 49 | X | = | 123000 7 |
47 49 | X | = | 123000 7 |
| X | = | 123000 7 | ÷ | 47 49 |
| = | 123000 7 | × | 49 47 |
| = | 123000 | × | 7 47 |
| X | = | 861000 47 |
| X | = | 18319.148936 |