4465 2 | + | 893 20 | + | 1 100 | K | + | 205 4 | + | 1 5000 | K | + | 5821 50 | + | 1 2000 | K | + | 269 5000 | K | = | 0 |
| 方程左边 = | 122241 50 | + | 129 2000 | K |
122241 50 | + | 129 2000 | K | = | 0 |
129 2000 | K | = | 0 | − | 122241 50 |
129 2000 | K | = | - | 122241 50 |
| K | = | - | 122241 50 | ÷ | 129 2000 |
| = | - | 122241 50 | × | 2000 129 |
| = | - | 40747 | × | 40 43 |
| K | = | - | 1629880 43 |
| K | = | - 37904.186047 |