5 | X | ÷ | ( | 5 | + | X | ) | = | 647 100 |
方程两边同时乘以: | ( | 5 | + | X | ) |
5 | X | = | 647 100 | ( | 5 | + | X | ) |
5 | X | = | 647 100 | × | 5 | + | 647 100 | X |
5 | X | = | 647 20 | + | 647 100 | X |
5 | X | − | 647 100 | X | = | 647 20 |
- | 147 100 | X | = | 647 20 |
- | 647 20 | = | 147 100 | X |
147 100 | X | = | - | 647 20 |
X | = | - | 647 20 | ÷ | 147 100 |
= | - | 647 20 | × | 100 147 |
= | - | 647 | × | 5 147 |
X | = | - | 3235 147 |
X | = | - 22.006803 |