64 25 | x | ÷ | ( | 1 | + | 39 25 | x | ) | = | - | ( | 93 100 | ÷ | 7 100 | ) | x | + | 21 50 | ÷ | 7 100 |
| 方程两边同时乘以: | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | ( | 93 100 | ÷ | 7 100 | ) | x | ( | 1 | + | 39 25 | x | ) | + | 21 50 | ÷ | 7 100 | × | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | 93 100 | ÷ | 7 100 | × | x | ( | 1 | + | 39 25 | x | ) | + | 21 50 | ÷ | 7 100 | × | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | 93 7 | x | ( | 1 | + | 39 25 | x | ) | + | 6 | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | 93 7 | x | × | 1 | − | 93 7 | x | × | 39 25 | x | + | 6 | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | 93 7 | x | − | 3627 175 | x | x | + | 6 | ( | 1 | + | 39 25 | x | ) |
64 25 | x | = | - | 93 7 | x | − | 3627 175 | x | x | + | 6 | × | 1 | + | 6 | × | 39 25 | x |
64 25 | x | = | - | 93 7 | x | − | 3627 175 | x | x | + | 6 | + | 234 25 | x |
64 25 | x | = | - | 687 175 | x | − | 3627 175 | x | x | + | 6 |