| ( | 16 | x | ) | ÷ | ( | 2000 | + | x | ) | + | 2 5 | = | ( | 16 | x | + | 2560 | ) | ÷ | ( | 2160 | + | x | ) |
| 方程两边同时乘以: | ( | 2000 | + | x | ) | , | ( | 2160 | + | x | ) |
| ( | 16 | x | ) | ( | 2160 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | ( | 16 | x | + | 2560 | ) | ( | 2000 | + | x | ) |
| 16 | x | ( | 2160 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | ( | 16 | x | + | 2560 | ) | ( | 2000 | + | x | ) |
| 16 | x | ( | 2160 | + | x | ) | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | 16 | x | ( | 2000 | + | x | ) | + | 2560 | ( | 2000 | + | x | ) |
| 16 | x | × | 2160 | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | 16 | x | ( | 2000 | + | x | ) | + | 2560 | ( | 2000 | + | x | ) |
| 16 | x | × | 2160 | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | 16 | x | × | 2000 | + | 16 | x | x | + | 2560 | ( | 2000 | + | x | ) |
| 34560 | x | + | 16 | x | x | + | 2 5 | ( | 2000 | + | x | ) | ( | 2160 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 2560 | ( | 2000 | + | x | ) |
| 34560 | x | + | 16 | x | x | + | 2 5 | × | 2000 | ( | 2160 | + | x | ) | + | 2 5 | x | ( | 2160 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 2560 | ( | 2000 | + | x | ) |
| 34560 | x | + | 16 | x | x | + | 2 5 | × | 2000 | ( | 2160 | + | x | ) | + | 2 5 | x | ( | 2160 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 2560 | × | 2000 | + | 2560 | x |
| 34560 | x | + | 16 | x | x | + | 800 | ( | 2160 | + | x | ) | + | 2 5 | x | ( | 2160 | + | x | ) | = | 32000 | x | + | 16 | x | x | + | 5120000 | + | 2560 | x |
| 34560 | x | + | 16 | x | x | + | 800 | ( | 2160 | + | x | ) | + | 2 5 | x | ( | 2160 | + | x | ) | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 34560 | x | + | 16 | x | x | + | 800 | × | 2160 | + | 800 | x | + | 2 5 | x | ( | 2160 | + | x | ) | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 34560 | x | + | 16 | x | x | + | 1728000 | + | 800 | x | + | 2 5 | x | ( | 2160 | + | x | ) | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 35360 | x | + | 16 | x | x | + | 1728000 | + | 2 5 | x | ( | 2160 | + | x | ) | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 35360 | x | + | 16 | x | x | + | 1728000 | + | 2 5 | x | × | 2160 | + | 2 5 | x | x | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 35360 | x | + | 16 | x | x | + | 1728000 | + | 864 | x | + | 2 5 | x | x | = | 34560 | x | + | 16 | x | x | + | 5120000 |
| 36224 | x | + | 16 | x | x | + | 1728000 | + | 2 5 | x | x | = | 34560 | x | + | 16 | x | x | + | 5120000 |