| ( | ( | x | × | 9 100 | ) | + | x | ) | × | 85 100 | = | 791010 |
| 方程左边 = | ( | x | × | 9 100 | ) | × | 85 100 | + | x | × | 85 100 |
| = | x | × | 9 100 | × | 85 100 | + | 85 100 | x |
| = | x | × | 153 2000 | + | 85 100 | x |
| = | 1853 2000 | x |
1853 2000 | x | = | 791010 |
| x | = | 791010 | ÷ | 1853 2000 |
| = | 791010 | × | 2000 1853 |
| = | 46530 | × | 2000 109 |
| x | = | 93060000 109 |
| x | = | 853761.46789 |