2 | ÷ | ( | d | − | 2 5 | ) | + | 1 | ÷ | ( | d | + | 9 | ) | = | 1 | ÷ | ( | d | + | 1 2 | ) |
方程两边同时乘以: | ( | d | − | 2 5 | ) | , | ( | d | + | 1 2 | ) |
2 | ( | d | + | 1 2 | ) | + | 1 | ÷ | ( | d | + | 9 | ) | × | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | ( | d | − | 2 5 | ) |
2 | d | + | 2 | × | 1 2 | + | 1 | ÷ | ( | d | + | 9 | ) | × | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | ( | d | − | 2 5 | ) |
2 | d | + | 2 | × | 1 2 | + | 1 | ÷ | ( | d | + | 9 | ) | × | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | − | 1 | × | 2 5 |
2 | d | + | 1 | + | 1 | ÷ | ( | d | + | 9 | ) | × | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | − | 2 5 |
方程两边同时乘以: | ( | d | + | 9 | ) |
2 | d | ( | d | + | 9 | ) | + | 1 | ( | d | + | 9 | ) | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | ( | d | + | 9 | ) | − | 2 5 | ( | d | + | 9 | ) |
2 | d | d | + | 2 | d | × | 9 | + | 1 | ( | d | + | 9 | ) | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | ( | d | + | 9 | ) | − | 2 5 | ( | d | + | 9 | ) |
2 | d | d | + | 2 | d | × | 9 | + | 1 | ( | d | + | 9 | ) | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 1 | d | × | 9 | − | 2 5 | ( | d | + | 9 | ) |
2 | d | d | + | 18 | d | + | 1 | ( | d | + | 9 | ) | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 9 | d | − | 2 5 | ( | d | + | 9 | ) |
2 | d | d | + | 18 | d | + | 1 | d | + | 1 | × | 9 | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 9 | d | − | 2 5 | ( | d | + | 9 | ) |
2 | d | d | + | 18 | d | + | 1 | d | + | 1 | × | 9 | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 9 | d | − | 2 5 | d | − | 2 5 | × | 9 |
2 | d | d | + | 18 | d | + | 1 | d | + | 9 | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 9 | d | − | 2 5 | d | − | 18 5 |
2 | d | d | + | 19 | d | + | 9 | + | 1 | ( | d | − | 2 5 | ) | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 19 | d | + | 9 | + | 1 | d | ( | d | + | 1 2 | ) | − | 1 | × | 2 5 | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 19 | d | + | 9 | + | 1 | d | ( | d | + | 1 2 | ) | − | 2 5 | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 19 | d | + | 9 | + | 1 | d | d | + | 1 | d | × | 1 2 | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 19 | d | + | 9 | + | 1 | d | d | + | 1 2 | d | − | 2 5 | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 39 2 | d | + | 9 | + | 1 | d | d | − | 2 5 | ( | d | + | 1 2 | ) | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 39 2 | d | + | 9 | + | 1 | d | d | − | 2 5 | d | − | 2 5 | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 39 2 | d | + | 9 | + | 1 | d | d | − | 2 5 | d | − | 1 5 | = | 1 | d | d | + | 43 5 | d | − | 18 5 |
2 | d | d | + | 191 10 | d | + | 44 5 | + | 1 | d | d | = | 1 | d | d | + | 43 5 | d | − | 18 5 |