( | 20272737 100 | − | x | ) | × | 7 100 | + | ( | 798923 10 | + | x | ) | × | 1 10 | = | 555031 25 |
方程左边 = | 20272737 100 | × | 7 100 | − | x | × | 7 100 | + | ( | 798923 10 | + | x | ) | × | 1 10 |
= | 141909159 10000 | − | x | × | 7 100 | + | ( | 798923 10 | + | x | ) | × | 1 10 |
= | 141909159 10000 | − | 7 100 | x | + | 798923 10 | × | 1 10 | + | x | × | 1 10 |
= | 141909159 10000 | − | 7 100 | x | + | 798923 100 | + | x | × | 1 10 |
x= | 210941 300 |