1800 | ÷ | x | − | 759 500 | ÷ | x | = | 20 |
方程两边同时乘以: | x |
1800 | − | 759 500 | ÷ | 1 | × | 1 | = | 20 | x |
- | 20 | x | = | - | 1800 | + | 759 500 | ÷ | 1 | × | 1 |
- | 20 | x | = | - | 1800 | + | 759 500 |
- | 20 | x | = | - | 899241 500 |
899241 500 | = | 20 | x |
20 | x | = | 899241 500 |
x | = | 899241 500 | ÷ | 20 |
= | 899241 500 | × | 1 20 |
x | = | 899241 10000 |
x | = | 89.9241 |