| 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 2 | × | 51 | ÷ | 31 | × | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 2 | × | 17 | ÷ | 31 | × | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | = | 0 |
| 方程左边 = | 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | = | 0 |
| 方程左边 = | 2 | × | 26 | ÷ | 31 | − | 2 | x | × | 51 | ÷ | 31 | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | 52 31 | − | 102 31 | x | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | 52 31 | − | 102 31 | x | + | 102 31 | × | 16 | ÷ | 31 | + | 102 31 | x | × | 17 | ÷ | 31 | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | 52 31 | − | 102 31 | x | + | 1632 961 | + | 1734 961 | x | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | 3244 961 | − | 1428 961 | x | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | 3244 961 | − | 1428 961 | x | − | 34 31 | × | 26 | ÷ | 31 | + | 34 31 | x | × | 51 | ÷ | 31 |
| = | 3244 961 | − | 1428 961 | x | − | 884 961 | + | 1734 961 | x |
| = | 2360 961 | + | 306 961 | x |
2360 961 | + | 306 961 | x | = | 0 |
306 961 | x | = | 0 | − | 2360 961 |
306 961 | x | = | - | 2360 961 |
| x | = | - | 2360 961 | ÷ | 306 961 |
| = | - | 2360 961 | × | 961 306 |
| = | - | 1180 | × | 1 153 |
| x | = | - | 1180 153 |
| x | = | - 7.712418 |