| 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 2 | × | 51 | ÷ | 31 | × | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 2 | × | 17 | ÷ | 31 | × | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 8 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 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 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 51 31 | − | 51 31 |
| = | 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 102 31 |
| 2 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 102 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 | ) | + | 136 31 |
| = | 52 31 | − | 102 31 | x | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 102 31 |
| = | - | 50 31 | − | 102 31 | x | + | 102 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | - | 50 31 | − | 102 31 | x | + | 102 31 | × | 16 | ÷ | 31 | + | 102 31 | x | × | 17 | ÷ | 31 | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) |
| = | - | 50 31 | − | 102 31 | x | + | 1632 961 | + | 1734 961 | x | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | 82 961 | − | 1428 961 | x | − | 34 31 | ( | 26 | ÷ | 31 | − | x | × | 51 | ÷ | 31 | ) | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | 82 961 | − | 1428 961 | x | − | 34 31 | × | 26 | ÷ | 31 | + | 34 31 | x | × | 51 | ÷ | 31 | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | 82 961 | − | 1428 961 | x | − | 884 961 | + | 1734 961 | x | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | - | 802 961 | + | 306 961 | x | + | 136 31 | ( | 16 | ÷ | 31 | + | x | × | 17 | ÷ | 31 | ) |
| = | - | 802 961 | + | 306 961 | x | + | 136 31 | × | 16 | ÷ | 31 | + | 136 31 | x | × | 17 | ÷ | 31 |
| = | - | 802 961 | + | 306 961 | x | + | 2176 961 | + | 2312 961 | x |
| = | 1374 961 | + | 2618 961 | x |
1374 961 | + | 2618 961 | x | = | 0 |
2618 961 | x | = | 0 | − | 1374 961 |
2618 961 | x | = | - | 1374 961 |
| x | = | - | 1374 961 | ÷ | 2618 961 |
| = | - | 1374 961 | × | 961 2618 |
| = | - | 687 | × | 1 1309 |
| x | = | - | 687 1309 |
| x | = | - 0.524828 |