| 1000 | ÷ | ( | 1 | + | x | ) | × | x | = | 21347 50 |
| 方程两边同时乘以: | ( | 1 | + | x | ) |
| 1000 | x | = | 21347 50 | ( | 1 | + | x | ) |
| 1000 | x | = | 21347 50 | × | 1 | + | 21347 50 | x |
| 1000 | x | = | 21347 50 | + | 21347 50 | x |
| 1000 | x | − | 21347 50 | x | = | 21347 50 |
28653 50 | x | = | 21347 50 |
| x | = | 21347 50 | ÷ | 28653 50 |
| = | 21347 50 | × | 50 28653 |
| = | 21347 | × | 1 28653 |
| x | = | 21347 28653 |
| x | = | 0.745018 |