| x | ÷ | ( | 1 | − | x | ) | ÷ | 18 | ÷ | 1 1000 | = | 27 250 |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
| x | ÷ | 18 | ÷ | 1 1000 | = | 27 250 | ( | 1 | − | x | ) |
| x | ÷ | 18 | ÷ | 1 1000 | = | 27 250 | × | 1 | − | 27 250 | x |
| x | × | 500 9 | = | 27 250 | − | 27 250 | x |
500 9 | x | + | 27 250 | x | = | 27 250 |
125243 2250 | x | = | 27 250 |
| x | = | 27 250 | ÷ | 125243 2250 |
| = | 27 250 | × | 2250 125243 |
| = | 27 | × | 9 125243 |
| x | = | 243 125243 |
| x | = | 0.00194 |