27191 20000 | = | - | 133 5000 | x | × | 2 | + | 893 10000 | x | + | 13599 10000 |
| 方程右边 = | - | 133 2500 | x | + | 893 10000 | x | + | 13599 10000 |
| = | 361 10000 | x | + | 13599 10000 |
27191 20000 | = | 361 10000 | x | + | 13599 10000 |
| - | 361 10000 | x | = | 13599 10000 | − | 27191 20000 |
| - | 361 10000 | x | = | 7 20000 |
| - | 7 20000 | = | 361 10000 | x |
361 10000 | x | = | - | 7 20000 |
| x | = | - | 7 20000 | ÷ | 361 10000 |
| = | - | 7 20000 | × | 10000 361 |
| = | - | 7 2 | × | 1 361 |
| x | = | - | 7 722 |
| x | = | - 0.009695 |