3 10 | ÷ | ( | x | − | 1 | ) | − | 1 2 | ÷ | ( | x | + | 2 | ) | = | 0 |
方程两边同时乘以: | ( | x | − | 1 | ) |
3 10 | − | 1 2 | ÷ | ( | x | + | 2 | ) | × | ( | x | − | 1 | ) | = | 0 |
3 10 | − | 1 2 | ÷ | ( | x | + | 2 | ) | × | x | + | 1 2 | ÷ | ( | x | + | 2 | ) | × | 1 | = | 0 |
3 10 | − | 1 2 | ÷ | ( | x | + | 2 | ) | × | x | + | 1 2 | ÷ | ( | x | + | 2 | ) | = | 0 |
方程两边同时乘以: | ( | x | + | 2 | ) |
3 10 | ( | x | + | 2 | ) | − | 1 2 | x | + | 1 2 | = | 0 |
3 10 | x | + | 3 10 | × | 2 | − | 1 2 | x | + | 1 2 | = | 0 |
3 10 | x | + | 3 5 | − | 1 2 | x | + | 1 2 | = | 0 |
- | 1 5 | x | + | 11 10 | = | 0 |
- | 1 5 | x | = | 0 | − | 11 10 |
- | 1 5 | x | = | - | 11 10 |
11 10 | = | 1 5 | x |
1 5 | x | = | 11 10 |
x | = | 11 10 | ÷ | 1 5 |
= | 11 10 | × | 5 |
= | 11 2 | × | 1 |
x | = | 11 2 |
x | = | 5.5 |