| ( | 301 10 | X | ) | ÷ | ( | 301 10 | + | X | ) | = | 20967 5000 |
| 方程两边同时乘以: | ( | 301 10 | + | X | ) |
| ( | 301 10 | X | ) | = | 20967 5000 | ( | 301 10 | + | X | ) |
301 10 | X | = | 20967 5000 | ( | 301 10 | + | X | ) |
301 10 | X | = | 20967 5000 | × | 301 10 | + | 20967 5000 | X |
301 10 | X | = | 6311067 50000 | + | 20967 5000 | X |
301 10 | X | − | 20967 5000 | X | = | 6311067 50000 |
129533 5000 | X | = | 6311067 50000 |
| X | = | 6311067 50000 | ÷ | 129533 5000 |
| = | 6311067 50000 | × | 5000 129533 |
| = | 6311067 10 | × | 1 129533 |
| X | = | 6311067 1295330 |
| X | = | 4.872169 |