| 1 | − | ( | 848518923 50 | − | x | ) | ÷ | ( | 436587583 25 | + | x | ) | = | 1993 50000 |
| 方程两边同时乘以: | ( | 436587583 25 | + | x | ) |
| 1 | ( | 436587583 25 | + | x | ) | − | ( | 848518923 50 | − | x | ) | = | 1993 50000 | ( | 436587583 25 | + | x | ) |
| 1 | × | 436587583 25 | + | 1 | x | − | ( | 848518923 50 | − | x | ) | = | 1993 50000 | ( | 436587583 25 | + | x | ) |
| 1 | × | 436587583 25 | + | 1 | x | − | ( | 848518923 50 | − | x | ) | = | 1993 50000 | × | 436587583 25 | + | 1993 50000 | x |