142813 10 | × | 300 | + | 1562 5 | × | 4005 | + | 7427 5 | x | − | 130851 1000 | × | 50000 | = | 2929014 5 |
| 方程左边 = | 4284390 | + | 1251162 | + | 7427 5 | x | − | 6542550 |
| = | - | 1006998 | + | 7427 5 | x |
| - | 1006998 | + | 7427 5 | x | = | 2929014 5 |
7427 5 | x | = | 2929014 5 | + | 1006998 |
7427 5 | x | = | 7964004 5 |
| x | = | 7964004 5 | ÷ | 7427 5 |
| = | 7964004 5 | × | 5 7427 |
| = | 7964004 | × | 1 7427 |
| x | = | 7964004 7427 |
| x | = | 1072.304295 |