| ( | 1 100 | + | 1 100 | x | ) | ÷ | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) | = | 149 50 |
| 方程两边同时乘以: | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
| ( | 1 100 | + | 1 100 | x | ) | = | 149 50 | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
1 100 | + | 1 100 | x | = | 149 50 | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
1 100 | + | 1 100 | x | = | 149 50 | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 149 50 | × | 3 10 | ( | 1 10 | − | 1 10 | x | ) | − | 149 50 | × | 1 10 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 447 500 | ( | 1 10 | − | 1 10 | x | ) | − | 149 500 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 447 500 | × | 1 10 | − | 447 500 | × | 1 10 | x | − | 149 500 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 447 5000 | − | 447 5000 | x | − | 149 500 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 447 5000 | − | 447 5000 | x | − | 149 500 | x | × | 1 10 | + | 149 500 | x | × | 1 10 | x |
1 100 | + | 1 100 | x | = | 447 5000 | − | 447 5000 | x | − | 149 5000 | x | + | 149 5000 | x | x |
1 100 | + | 1 100 | x | = | 447 5000 | − | 149 1250 | x | + | 149 5000 | x | x |