| 0 | = | - | 1 5000 | x | × | 3 | + | 21 10000 | x | × | 2 | + | 563 5000 | x | + | 909 10000 |
| 方程右边 = | - | 3 5000 | x | + | 21 5000 | x | + | 563 5000 | x | + | 909 10000 |
| = | 581 5000 | x | + | 909 10000 |
| 0 | = | 581 5000 | x | + | 909 10000 |
| - | 581 5000 | x | = | 909 10000 | − | 0 |
| - | 581 5000 | x | = | 909 10000 |
| - | 909 10000 | = | 581 5000 | x |
581 5000 | x | = | - | 909 10000 |
| x | = | - | 909 10000 | ÷ | 581 5000 |
| = | - | 909 10000 | × | 5000 581 |
| = | - | 909 2 | × | 1 581 |
| x | = | - | 909 1162 |
| x | = | - 0.782272 |