( | ( | 3 | − | x | ) | ÷ | x | − | 4 | ) | − | ( | 1 | ÷ | ( | 4 | − | x | ) | ) | = | 1 |
( | 3 | − | x | ) | ÷ | x | − | 4 | − | ( | 1 | ÷ | ( | 4 | − | x | ) | ) | = | 1 |
方程两边同时乘以: | x |
( | 3 | − | x | ) | − | 4 | x | − | ( | 1 | ÷ | ( | 4 | − | x | ) | ) | x | = | 1 | x |
3 | − | x | − | 4 | x | − | ( | 1 | ÷ | ( | 4 | − | x | ) | ) | x | = | 1 | x |
3 | − | 5 | x | − | ( | 1 | ÷ | ( | 4 | − | x | ) | ) | x | = | 1 | x |
3 | − | 5 | x | − | 1 | ÷ | ( | 4 | − | x | ) | × | x | = | 1 | x |
方程两边同时乘以: | ( | 4 | − | x | ) |
3 | ( | 4 | − | x | ) | − | 5 | x | ( | 4 | − | x | ) | − | 1 | x | = | 1 | x | ( | 4 | − | x | ) |
3 | × | 4 | − | 3 | x | − | 5 | x | ( | 4 | − | x | ) | − | 1 | x | = | 1 | x | ( | 4 | − | x | ) |
3 | × | 4 | − | 3 | x | − | 5 | x | ( | 4 | − | x | ) | − | 1 | x | = | 1 | x | × | 4 | − | 1 | x | x |
12 | − | 3 | x | − | 5 | x | ( | 4 | − | x | ) | − | 1 | x | = | 4 | x | − | 1 | x | x |
12 | − | 4 | x | − | 5 | x | ( | 4 | − | x | ) | = | 4 | x | − | 1 | x | x |
12 | − | 4 | x | − | 5 | x | × | 4 | + | 5 | x | x | = | 4 | x | − | 1 | x | x |
12 | − | 4 | x | − | 20 | x | + | 5 | x | x | = | 4 | x | − | 1 | x | x |
12 | − | 24 | x | + | 5 | x | x | = | 4 | x | − | 1 | x | x |