| 100 | ÷ | ( | 100 | − | X | ) | = | 10417 10000 |
| 方程两边同时乘以: | ( | 100 | − | X | ) |
| 100 | = | 10417 10000 | ( | 100 | − | X | ) |
| 100 | = | 10417 10000 | × | 100 | − | 10417 10000 | X |
| 100 | = | 10417 100 | − | 10417 10000 | X |
10417 10000 | X | = | 10417 100 | − | 100 |
10417 10000 | X | = | 417 100 |
| X | = | 417 100 | ÷ | 10417 10000 |
| = | 417 100 | × | 10000 10417 |
| = | 417 | × | 100 10417 |
| X | = | 41700 10417 |
| X | = | 4.003072 |