1 | ÷ | x | + | 1 | ÷ | x | − | 15 | = | 1 | ÷ | 4 |
方程两边同时乘以: | x |
1 | + | 1 | ÷ | 1 | × | 1 | − | 15 | x | = | 1 | ÷ | 4 | × | x |
- | 15 | x | − | 1 | ÷ | 4 | × | x | = | - | 1 | − | 1 | ÷ | 1 | × | 1 |
- | 15 | x | − | 1 4 | x | = | - | 1 | − | 1 | ÷ | 1 | × | 1 |
- | 15 | x | − | 1 4 | x | = | - | 1 | − | 1 |
- | 61 4 | x | = | - | 1 | − | 1 |
- | 61 4 | x | = | - | 2 |
2 | = | 61 4 | x |
61 4 | x | = | 2 |
x | = | 2 | ÷ | 61 4 |
= | 2 | × | 4 61 |
x | = | 8 61 |
x | = | 0.131148 |