| 20 | x | ÷ | ( | 20 | + | 100 | x | ) | = | 183 1000 |
| 方程两边同时乘以: | ( | 20 | + | 100 | x | ) |
| 20 | x | = | 183 1000 | ( | 20 | + | 100 | x | ) |
| 20 | x | = | 183 1000 | × | 20 | + | 183 1000 | × | 100 | x |
| 20 | x | = | 183 50 | + | 183 10 | x |
| 20 | x | − | 183 10 | x | = | 183 50 |
17 10 | x | = | 183 50 |
| x | = | 183 50 | ÷ | 17 10 |
| = | 183 50 | × | 10 17 |
| = | 183 5 | × | 1 17 |
| x | = | 183 85 |
| x | = | 2.152941 |