| ( | 3839 10000 | − | 2 625 | x | ) | ( | 23 2 | x | ) | = | ( | 7329 20000 | + | 111 100000 | x | ) | ( | x | − | 5 | ) |
| 方程左边 = | 3839 10000 | ( | 23 2 | x | ) | − | 2 625 | x | ( | 23 2 | x | ) |
| = | 3839 10000 | × | 23 2 | x | − | 2 625 | x | ( | 23 2 | x | ) |
| = | 88297 20000 | x | − | 2 625 | x | ( | 23 2 | x | ) |
| = | 88297 20000 | x | − | 2 625 | x | × | 23 2 | x |
| = | 88297 20000 | x | − | 23 625 | x | x |
88297 20000 | x | − | 23 625 | x | x | = | ( | 7329 20000 | + | 111 100000 | x | ) | ( | x | − | 5 | ) |
| 方程右边 = | 7329 20000 | ( | x | − | 5 | ) | + | 111 100000 | x | ( | x | − | 5 | ) |
| = | 7329 20000 | x | − | 7329 20000 | × | 5 | + | 111 100000 | x | ( | x | − | 5 | ) |
| = | 7329 20000 | x | − | 7329 4000 | + | 111 100000 | x | ( | x | − | 5 | ) |
| = | 7329 20000 | x | − | 7329 4000 | + | 111 100000 | x | x | − | 111 100000 | x | × | 5 |
| = | 7329 20000 | x | − | 7329 4000 | + | 111 100000 | x | x | − | 111 20000 | x |
| = | 3609 10000 | x | − | 7329 4000 | + | 111 100000 | x | x |
88297 20000 | x | − | 23 625 | x | x | = | 3609 10000 | x | − | 7329 4000 | + | 111 100000 | x | x |