| ( | 80000 | − | x | ) | + | ( | x | − | x | ÷ | 101 100 | ) | = | 5534 5 |
| 方程左边 = | 80000 | − | x | + | ( | x | − | x | ÷ | 101 100 | ) |
| = | 80000 | − | x | + | x | − | x | ÷ | 101 100 |
| = | 80000 | − | 100 101 | x |
| 80000 | − | 100 101 | x | = | 5534 5 |
| - | 100 101 | x | = | 5534 5 | − | 80000 |
| - | 100 101 | x | = | - | 394466 5 |
394466 5 | = | 100 101 | x |
100 101 | x | = | 394466 5 |
| x | = | 394466 5 | ÷ | 100 101 |
| = | 394466 5 | × | 101 100 |
| = | 197233 5 | × | 101 50 |
| x | = | 19920533 250 |
| x | = | 79682.132 |