x | = | ( | 1 20 | − | x | ) | ( | 51 20 | − | x | ) | × | 1738 |
方程右边 = | 1 20 | ( | 51 20 | − | x | ) | × | 1738 | − | x | ( | 51 20 | − | x | ) | × | 1738 |
= | 869 10 | ( | 51 20 | − | x | ) | − | x | ( | 51 20 | − | x | ) | × | 1738 |
= | 869 10 | × | 51 20 | − | 869 10 | x | − | x | ( | 51 20 | − | x | ) | × | 1738 |
= | 44319 200 | − | 869 10 | x | − | x | ( | 51 20 | − | x | ) | × | 1738 |
= | 44319 200 | − | 869 10 | x | − | x | × | 51 20 | × | 1738 | + | x | x | × | 1738 |
= | 44319 200 | − | 869 10 | x | − | x | × | 44319 10 | + | x | x | × | 1738 |
= | 44319 200 | − | 22594 5 | x | + | x | x | × | 1738 |
x | = | 44319 200 | − | 22594 5 | x | + | x | x | × | 1738 |