| ( | 65 | × | 9 10 | − | x | ) | × | 77 100 | = | 65 | × | 1 2 |
| 方程左边 = | 65 | × | 9 10 | × | 77 100 | − | x | × | 77 100 |
| = | 9009 200 | − | x | × | 77 100 |
9009 200 | − | 77 100 | x | = | 65 | × | 1 2 |
| 方程右边 = | 65 2 |
9009 200 | − | 77 100 | x | = | 65 2 |
| - | 77 100 | x | = | 65 2 | − | 9009 200 |
| - | 77 100 | x | = | - | 2509 200 |
2509 200 | = | 77 100 | x |
77 100 | x | = | 2509 200 |
| x | = | 2509 200 | ÷ | 77 100 |
| = | 2509 200 | × | 100 77 |
| = | 2509 2 | × | 1 77 |
| x | = | 2509 154 |
| x | = | 16.292208 |