17 20 | ( | 11 50 | − | k | ) | ÷ | ( | 11 50 | + | 2 | k | ) | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ÷ | ( | 631 500 | + | 2 | k | ) | = | 0 |
| 方程两边同时乘以: | ( | 11 50 | + | 2 | k | ) |
17 20 | ( | 11 50 | − | k | ) | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ÷ | ( | 631 500 | + | 2 | k | ) | × | ( | 11 50 | + | 2 | k | ) | = | 0 |
17 20 | × | 11 50 | − | 17 20 | k | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ÷ | ( | 631 500 | + | 2 | k | ) | × | ( | 11 50 | + | 2 | k | ) | = | 0 |
187 1000 | − | 17 20 | k | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ÷ | ( | 631 500 | + | 2 | k | ) | × | ( | 11 50 | + | 2 | k | ) | = | 0 |
| 方程两边同时乘以: | ( | 631 500 | + | 2 | k | ) |
187 1000 | ( | 631 500 | + | 2 | k | ) | − | 17 20 | k | ( | 631 500 | + | 2 | k | ) | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
187 1000 | × | 631 500 | + | 187 1000 | × | 2 | k | − | 17 20 | k | ( | 631 500 | + | 2 | k | ) | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | + | 187 500 | k | − | 17 20 | k | ( | 631 500 | + | 2 | k | ) | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | + | 187 500 | k | − | 17 20 | k | × | 631 500 | − | 17 20 | k | × | 2 | k | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | = | 0 |
117997 500000 | + | 187 500 | k | − | 10727 10000 | k | − | 17 10 | k | k | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | ( | 1 | − | 17 20 | ) | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | 1 | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | − | 17 20 | ( | 631 500 | − | k | ) | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | 1 | × | 631 500 | ( | 11 50 | + | 2 | k | ) | − | 1 | k | ( | 11 50 | + | 2 | k | ) | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | 631 500 | ( | 11 50 | + | 2 | k | ) | − | 1 | k | ( | 11 50 | + | 2 | k | ) | − | 17 20 | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | 631 500 | × | 11 50 | + | 631 500 | × | 2 | k | − | 1 | = | 0 |
117997 500000 | − | 6987 10000 | k | − | 17 10 | k | k | + | 6941 25000 | + | 631 250 | k | − | 1 | k | ( | 11 50 | + | 2 | k | ) | = | 0 |