| 15000 | = | 512 | × | 5 4 | + | 32 | × | 1024 | × | 1 5 | + | x | × | 1 5000 |
| 方程右边 = | 640 | + | 32768 5 | + | x | × | 1 5000 |
| = | 35968 5 | + | 1 5000 | x |
| 15000 | = | 35968 5 | + | 1 5000 | x |
| - | 1 5000 | x | = | 35968 5 | − | 15000 |
| - | 1 5000 | x | = | - | 39032 5 |
39032 5 | = | 1 5000 | x |
1 5000 | x | = | 39032 5 |
| x | = | 39032 5 | ÷ | 1 5000 |
| = | 39032 5 | × | 5000 |
| = | 39032 | × | 1000 |
| x | = | 39032000 |