93 100 | X | + | 37 5 | ( | 100 | − | X | ) | = | 238 |
| Left side of the equation = | 93 100 | X | + | 37 5 | × | 100 | − | 37 5 | X |
| = | 93 100 | X | + | 740 | − | 37 5 | X |
| = | - | 647 100 | X | + | 740 |
| - | 647 100 | X | + | 740 | = | 238 |
| - | 647 100 | X | = | 238 | − | 740 |
| - | 647 100 | X | = | - | 502 |
| 502 | = | 647 100 | X |
647 100 | X | = | 502 |
| X | = | 502 | ÷ | 647 100 |
| = | 502 | × | 100 647 |
| X | = | 50200 647 |
| X | = | 77.588872 |