( | X | − | 809 100 | ) | ÷ | 809 100 | × | 100 100 | = | 10 100 |
方程左边 = | ( | X | − | 809 100 | ) | × | 100 809 |
( | X | − | 809 100 | ) | × | 100 809 | = | 10 100 |
方程左边 = | X | × | 100 809 | − | 809 100 | × | 100 809 |
= | X | × | 100 809 | − | 1 |
100 809 | X | − | 1 | = | 10 100 |
100 809 | X | = | 10 100 | + | 1 |
100 809 | X | = | 11 10 |
X | = | 11 10 | ÷ | 100 809 |
= | 11 10 | × | 809 100 |
X | = | 8899 1000 |
X | = | 8.899 |