313 5000 | = | ( | X | − | 920177 4 | ) | ÷ | X |
| 方程两边同时乘以: | X |
313 5000 | X | = | ( | X | − | 920177 4 | ) |
313 5000 | X | = | X | − | 920177 4 |
313 5000 | X | − | X | = | - | 920177 4 |
| - | 4687 5000 | X | = | - | 920177 4 |
920177 4 | = | 4687 5000 | X |
4687 5000 | X | = | 920177 4 |
| X | = | 920177 4 | ÷ | 4687 5000 |
| = | 920177 4 | × | 5000 4687 |
| = | 920177 | × | 1250 4687 |
| X | = | 1150221250 4687 |
| X | = | 245406.710049 |