| ( | 7638 125 | f | × | 1 | + | 38363 1000 | f | × | 2 | + | 63351 1000 | f | × | 3 | ) | ÷ | ( | 57 50 | f | × | 1 | + | 227 200 | f | × | 2 | + | 543 500 | f | × | 3 | ) | × | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | = | 0 |
| 方程两边同时乘以: | ( | 57 50 | f | × | 1 | + | 227 200 | f | × | 2 | + | 543 500 | f | × | 3 | ) |
| ( | 7638 125 | f | × | 1 | + | 38363 1000 | f | × | 2 | + | 63351 1000 | f | × | 3 | ) | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | = | 0 |
7638 125 | f | × | 1 | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | + | 38363 1000 | f | × | 2 | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | + | 63351 1000 | f | = | 0 |
7638 125 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | + | 38363 500 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | + | 190053 1000 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | ÷ | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) | = | 0 |
| 方程两边同时乘以: | ( | 227 5 | f | × | 1 | + | 30 | f | × | 2 | + | 276 5 | f | × | 3 | ) |
7638 125 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | + | 38363 500 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | + | 190053 1000 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | = | 0 |
7638 125 | f | f | × | 1 | + | 7638 125 | f | f | × | 2 | + | 7638 125 | f | f | × | 3 | = | 0 |
7638 125 | f | f | + | 15276 125 | f | f | + | 22914 125 | f | f | + | 38363 500 | f | ( | f | × | 1 | + | f | × | 2 | + | f | × | 3 | ) | = | 0 |
7638 125 | f | f | + | 15276 125 | f | f | + | 22914 125 | f | f | + | 38363 500 | f | f | = | 0 |
7638 125 | f | f | + | 15276 125 | f | f | + | 22914 125 | f | f | + | 38363 500 | f | f | = | 0 |
7638 125 | f | f | + | 15276 125 | f | f | + | 22914 125 | f | f | + | 38363 500 | f | f | = | 0 |
7638 125 | f | f | + | 15276 125 | f | f | + | 22914 125 | f | f | + | 38363 500 | f | f | = | 0 |