5 2 | x | ÷ | ( | 1 | + | 3 2 | x | ) | = | 189 50 | x | − | 111 100 |
| 方程两边同时乘以: | ( | 1 | + | 3 2 | x | ) |
5 2 | x | = | 189 50 | x | ( | 1 | + | 3 2 | x | ) | − | 111 100 | ( | 1 | + | 3 2 | x | ) |
5 2 | x | = | 189 50 | x | × | 1 | + | 189 50 | x | × | 3 2 | x | − | 111 100 | ( | 1 | + | 3 2 | x | ) |
5 2 | x | = | 189 50 | x | + | 567 100 | x | x | − | 111 100 | ( | 1 | + | 3 2 | x | ) |
5 2 | x | = | 189 50 | x | + | 567 100 | x | x | − | 111 100 | × | 1 | − | 111 100 | × | 3 2 | x |
5 2 | x | = | 189 50 | x | + | 567 100 | x | x | − | 111 100 | − | 333 200 | x |
5 2 | x | = | 423 200 | x | + | 567 100 | x | x | − | 111 100 |