16 100 | = | 24 100 | + | x% | + | 24 100 | × | x% |
| 方程右边 = | 24 100 | + | x% | + | 3 1250 | x |
16 100 | = | 24 100 | + | x% | + | 3 1250 | x |
| - | x% | − | 3 1250 | x | = | 24 100 | − | 16 100 |
| - | 31 2500 | x | = | 24 100 | − | 16 100 |
| - | 31 2500 | x | = | 2 25 |
| - | 2 25 | = | 31 2500 | x |
31 2500 | x | = | - | 2 25 |
| x | = | - | 2 25 | ÷ | 31 2500 |
| = | - | 2 25 | × | 2500 31 |
| = | - | 2 | × | 100 31 |
| x | = | - | 200 31 |
| x | = | - 6.451613 |