| ( | 16 | x | ) | ÷ | ( | 2000 | + | x | ) | + | 2 5 | = | ( | 16 | x | + | 1280 | ) | ÷ | ( | 2080 | + | x | ) |
| 方程两边同时乘以: | ( | 2000 | + | x | ) | , | ( | 2080 | + | x | ) |
| ( | 16 | x | ) | ( | 2080 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | ( | 16 | x | + | 1280 | ) | ( | 2000 | + | x | ) |
| 16 | x | ( | 2080 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | ( | 16 | x | + | 1280 | ) | ( | 2000 | + | x | ) |
| 16 | x | ( | 2080 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | 16 | x | ( | 2000 | + | x | ) | + | 1280 | ( | 2000 | + | x | ) |
| 16 | x | × | 2080 | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | 16 | x | ( | 2000 | + | x | ) | + | 1280 | ( | 2000 | + | x | ) |
| 16 | x | × | 2080 | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | 16 | x | × | 2000 | + | 16 | x | x | + | 1280 | ( | 2000 | + | x | ) |
| 33280 | x | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2080 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 1280 | ( | 2000 | + | x | ) |
| 33280 | x | + | 16 | x | x | + | 2 5 | × | 2000 | ( | 2080 | + | x | ) | + | 2 5 | x | ( | 2080 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 1280 | ( | 2000 | + | x | ) |
| 33280 | x | + | 16 | x | x | + | 2 5 | × | 2000 | ( | 2080 | + | x | ) | + | 2 5 | x | ( | 2080 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 1280 | × | 2000 | + | 1280 | x |
| 33280 | x | + | 16 | x | x | + | 800 | ( | 2080 | + | x | ) | + | 2 5 | x | ( | 2080 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 2560000 | + | 1280 | x |
| 33280 | x | + | 16 | x | x | + | 800 | ( | 2080 | + | x | ) | + | 2 5 | x | ( | 2080 | + | x | ) | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 33280 | x | + | 16 | x | x | + | 800 | × | 2080 | + | 800 | x | + | 2 5 | x | ( | 2080 | + | x | ) | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 33280 | x | + | 16 | x | x | + | 1664000 | + | 800 | x | + | 2 5 | x | ( | 2080 | + | x | ) | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 34080 | x | + | 16 | x | x | + | 1664000 | + | 2 5 | x | ( | 2080 | + | x | ) | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 34080 | x | + | 16 | x | x | + | 1664000 | + | 2 5 | x | × | 2080 | + | 2 5 | x | x | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 34080 | x | + | 16 | x | x | + | 1664000 | + | 832 | x | + | 2 5 | x | x | = | 33280 | x | + | 16 | x | x | + | 2560000 |
| 34912 | x | + | 16 | x | x | + | 1664000 | + | 2 5 | x | x | = | 33280 | x | + | 16 | x | x | + | 2560000 |