| ( | 20 | × | 1000 | + | 14 | x | ) | ÷ | ( | 1000 | + | x | ) | = | 16 |
| 方程两边同时乘以: | ( | 1000 | + | x | ) |
| ( | 20 | × | 1000 | + | 14 | x | ) | = | 16 | ( | 1000 | + | x | ) |
| 20 | × | 1000 | + | 14 | x | = | 16 | ( | 1000 | + | x | ) |
| 20 | × | 1000 | + | 14 | x | = | 16 | × | 1000 | + | 16 | x |
| 20000 | + | 14 | x | = | 16000 | + | 16 | x |
| 14 | x | − | 16 | x | = | 16000 | − | 20000 |
| - | 2 | x | = | 16000 | − | 20000 |
| - | 2 | x | = | - | 4000 |
| 4000 | = | 2 | x |
| 2 | x | = | 4000 |
| x | = | 4000 | ÷ | 2 |
| = | 4000 | × | 1 2 |
| = | 2000 | × | 1 |
| x | = | 2000 |