| X | ÷ | ( | X | + | 13889 25 | ) | = | 3 100 |
| 方程两边同时乘以: | ( | X | + | 13889 25 | ) |
| X | = | 3 100 | ( | X | + | 13889 25 | ) |
| X | = | 3 100 | X | + | 3 100 | × | 13889 25 |
| X | = | 3 100 | X | + | 41667 2500 |
| X | − | 3 100 | X | = | 41667 2500 |
97 100 | X | = | 41667 2500 |
| X | = | 41667 2500 | ÷ | 97 100 |
| = | 41667 2500 | × | 100 97 |
| = | 41667 25 | × | 1 97 |
| X | = | 41667 2425 |
| X | = | 17.182268 |