| 1060100 | + | 0 | + | x | − | ( | 190 | × | 5 200 | ) | − | 450000 | = | 300000 |
| 方程左边 = | 610100 | + | x | − | ( | 190 | × | 5 200 | ) |
| 610100 | + | x | − | ( | 190 | × | 5 200 | ) | = | 300000 |
| 方程左边 = | 610100 | + | x | − | 190 | × | 5 200 |
| = | 610100 | + | x | − | 19 4 |
| = | 2440381 4 | + | x |
2440381 4 | + | x | = | 300000 |
| x | = | 300000 | − | 2440381 4 |
| x | = | - | 1240381 4 |