60 | + | ( | 17 | + | 9 | x | ) | ( | 1 2 | + | x | ) | ÷ | ( | 1 | + | x | ) | = | 469 5 |
方程两边同时乘以: | ( | 1 | + | x | ) |
60 | ( | 1 | + | x | ) | + | ( | 17 | + | 9 | x | ) | ( | 1 2 | + | x | ) | = | 469 5 | ( | 1 | + | x | ) |
60 | × | 1 | + | 60 | x | + | ( | 17 | + | 9 | x | ) | ( | 1 2 | + | x | ) | = | 469 5 | ( | 1 | + | x | ) |
60 | × | 1 | + | 60 | x | + | ( | 17 | + | 9 | x | ) | ( | 1 2 | + | x | ) | = | 469 5 | × | 1 | + | 469 5 | x |
60 | + | 60 | x | + | ( | 17 | + | 9 | x | ) | ( | 1 2 | + | x | ) | = | 469 5 | + | 469 5 | x |
60 | + | 60 | x | + | 17 | ( | 1 2 | + | x | ) | + | 9 | x | ( | 1 2 | + | x | ) | = | 469 5 | + | 469 5 | x |
60 | + | 60 | x | + | 17 | × | 1 2 | + | 17 | x | + | 9 | x | ( | 1 2 | + | x | ) | = | 469 5 | + | 469 5 | x |
60 | + | 60 | x | + | 17 2 | + | 17 | x | + | 9 | x | ( | 1 2 | + | x | ) | = | 469 5 | + | 469 5 | x |
137 2 | + | 77 | x | + | 9 | x | ( | 1 2 | + | x | ) | = | 469 5 | + | 469 5 | x |
137 2 | + | 77 | x | + | 9 | x | × | 1 2 | + | 9 | x | x | = | 469 5 | + | 469 5 | x |
137 2 | + | 77 | x | + | 9 2 | x | + | 9 | x | x | = | 469 5 | + | 469 5 | x |
137 2 | + | 163 2 | x | + | 9 | x | x | = | 469 5 | + | 469 5 | x |