| 2 | x | × | 1291 2500 | ÷ | ( | x | + | 1291 2500 | ) | = | 297 625 |
| 方程两边同时乘以: | ( | x | + | 1291 2500 | ) |
| 2 | x | × | 1291 2500 | = | 297 625 | ( | x | + | 1291 2500 | ) |
| 2 | x | × | 1291 2500 | = | 297 625 | x | + | 297 625 | × | 1291 2500 |
1291 1250 | x | = | 297 625 | x | + | 383427 1562500 |
1291 1250 | x | − | 297 625 | x | = | 383427 1562500 |
697 1250 | x | = | 383427 1562500 |
| x | = | 383427 1562500 | ÷ | 697 1250 |
| = | 383427 1562500 | × | 1250 697 |
| = | 383427 1250 | × | 1 697 |
| x | = | 383427 871250 |
| x | = | 0.440088 |