3000 | ÷ | x | × | 6 5 | = | 2700 | ÷ | ( | 35 | − | x | ) |
方程两边同时乘以: | x | , | ( | 35 | − | x | ) |
3000 | × | 6 5 | ( | 35 | − | x | ) | = | 2700 | x |
3000 | × | 6 5 | × | 35 | − | 3000 | × | 6 5 | x | = | 2700 | x |
126000 | − | 3600 | x | = | 2700 | x |
- | 3600 | x | − | 2700 | x | = | - | 126000 |
- | 6300 | x | = | - | 126000 |
126000 | = | 6300 | x |
6300 | x | = | 126000 |
x | = | 126000 | ÷ | 6300 |
= | 126000 | × | 1 6300 |
= | 20 | × | 1 |
x | = | 20 |