| ( | 17 25 | − | x | ) | ÷ | ( | 1 25 | + | x | ) | × | ( | 1 10 | + | x | ) | = | 170 |
| 方程两边同时乘以: | ( | 1 25 | + | x | ) |
| ( | 17 25 | − | x | ) | ( | 1 10 | + | x | ) | = | 170 | ( | 1 25 | + | x | ) |
17 25 | ( | 1 10 | + | x | ) | − | x | ( | 1 10 | + | x | ) | = | 170 | ( | 1 25 | + | x | ) |
17 25 | ( | 1 10 | + | x | ) | − | x | ( | 1 10 | + | x | ) | = | 170 | × | 1 25 | + | 170 | x |
17 25 | ( | 1 10 | + | x | ) | − | x | ( | 1 10 | + | x | ) | = | 34 5 | + | 170 | x |
17 25 | × | 1 10 | + | 17 25 | x | − | x | ( | 1 10 | + | x | ) | = | 34 5 | + | 170 | x |
17 250 | + | 17 25 | x | − | x | ( | 1 10 | + | x | ) | = | 34 5 | + | 170 | x |
17 250 | + | 17 25 | x | − | x | × | 1 10 | − | x | x | = | 34 5 | + | 170 | x |
17 250 | + | 29 50 | x | − | x | x | = | 34 5 | + | 170 | x |