| ( | 1 1000 | + | x | ) | ÷ | ( | 1 100 | − | x | ) | × | ( | 1 10 | − | x | ) | = | 16 5 |
| 方程两边同时乘以: | ( | 1 100 | − | x | ) |
| ( | 1 1000 | + | x | ) | ( | 1 10 | − | x | ) | = | 16 5 | ( | 1 100 | − | x | ) |
1 1000 | ( | 1 10 | − | x | ) | + | x | ( | 1 10 | − | x | ) | = | 16 5 | ( | 1 100 | − | x | ) |
1 1000 | ( | 1 10 | − | x | ) | + | x | ( | 1 10 | − | x | ) | = | 16 5 | × | 1 100 | − | 16 5 | x |
1 1000 | ( | 1 10 | − | x | ) | + | x | ( | 1 10 | − | x | ) | = | 4 125 | − | 16 5 | x |
1 1000 | × | 1 10 | − | 1 1000 | x | + | x | ( | 1 10 | − | x | ) | = | 4 125 | − | 16 5 | x |
1 10000 | − | 1 1000 | x | + | x | ( | 1 10 | − | x | ) | = | 4 125 | − | 16 5 | x |
1 10000 | − | 1 1000 | x | + | x | × | 1 10 | − | x | x | = | 4 125 | − | 16 5 | x |
1 10000 | + | 99 1000 | x | − | x | x | = | 4 125 | − | 16 5 | x |