| - | 11200 | + | X | − | ( | 10 100 | X | ÷ | 4 | ) | = | 100 |
| Left side of the equation = | - | 11200 | + | X | − | 10 100 | X | ÷ | 4 |
| = | - | 11200 | + | X | − | 1 40 | X |
| = | - | 11200 | + | 39 40 | X |
| - | 11200 | + | 39 40 | X | = | 100 |
39 40 | X | = | 100 | + | 11200 |
39 40 | X | = | 11300 |
| X | = | 11300 | ÷ | 39 40 |
| = | 11300 | × | 40 39 |
| X | = | 452000 39 |
| X | = | 11589.74359 |