3 | ÷ | 2 | + | 3 | ÷ | ( | 2 | m | − | 2 | ) | = | m | ÷ | 2 |
方程两边同时乘以: | ( | 2 | m | − | 2 | ) |
3 | ÷ | 2 | × | ( | 2 | m | − | 2 | ) | + | 3 | = | m | ÷ | 2 | × | ( | 2 | m | − | 2 | ) |
3 | ÷ | 2 | × | 2 | m | − | 3 | ÷ | 2 | × | 2 | + | 3 | = | m | ÷ | 2 | × | ( | 2 | m | − | 2 | ) |
3 | ÷ | 2 | × | 2 | m | − | 3 | ÷ | 2 | × | 2 | + | 3 | = | m | ÷ | 2 | × | 2 | m | − | m | ÷ | 2 | × | 2 |
3 | m | − | 3 | + | 3 | = | m | × | 1 | m | − | m | × | 1 |
3 | m | − | 0 | = | m | × | 1 | m | − | 1 | m |