| x | − | 66543 100 | − | ( | x | − | 66543 100 | − | 15000 | ) | × | 3 100 | = | 8000 |
| 方程左边 = | x | − | 66543 100 | − | x | × | 3 100 | + | 66543 100 | × | 3 100 | + | 15000 | × | 3 100 |
| = | x | − | 66543 100 | − | x | × | 3 100 | + | 199629 10000 | + | 450 |
| = | 97 100 | x | − | 1954671 10000 |
97 100 | x | − | 1954671 10000 | = | 8000 |
97 100 | x | = | 8000 | + | 1954671 10000 |
97 100 | x | = | 81954671 10000 |
| x | = | 81954671 10000 | ÷ | 97 100 |
| = | 81954671 10000 | × | 100 97 |
| = | 81954671 100 | × | 1 97 |
| x | = | 81954671 9700 |
| x | = | 8448.935155 |