( | X | − | X | ÷ | 113 100 | × | 1 10 | ) | ÷ | 717 100 | = | 489 1000 |
方程左边 = | X | × | 100 717 | − | X | ÷ | 113 100 | × | 1 10 | × | 100 717 |
= | X | × | 100 717 | − | X | × | 1000 81021 |
= | 10300 81021 | X |
10300 81021 | X | = | 489 1000 |
X | = | 489 1000 | ÷ | 10300 81021 |
= | 489 1000 | × | 81021 10300 |
X | = | 39619269 10300000 |
X | = | 3.846531 |