| ( | 553 5 | − | X | ) | ÷ | X | = | 2007 10000 |
| 方程两边同时乘以: | X |
| ( | 553 5 | − | X | ) | = | 2007 10000 | X |
553 5 | − | X | = | 2007 10000 | X |
| - | X | − | 2007 10000 | X | = | - | 553 5 |
| - | 12007 10000 | X | = | - | 553 5 |
553 5 | = | 12007 10000 | X |
12007 10000 | X | = | 553 5 |
| X | = | 553 5 | ÷ | 12007 10000 |
| = | 553 5 | × | 10000 12007 |
| = | 553 | × | 2000 12007 |
| X | = | 1106000 12007 |
| X | = | 92.112934 |