3 | = | 100 | ( | x | − | 216 | ) | ÷ | ( | x | × | 650 | ÷ | 100 | ) |
方程两边同时乘以: | ( | x | × | 650 | ÷ | 100 | ) |
3 | ( | x | × | 650 | ÷ | 100 | ) | = | 100 | ( | x | − | 216 | ) |
3 | x | × | 650 | ÷ | 100 | = | 100 | ( | x | − | 216 | ) |
3 | x | × | 650 | ÷ | 100 | = | 100 | x | − | 100 | × | 216 |
39 2 | x | = | 100 | x | − | 21600 |
39 2 | x | − | 100 | x | = | - | 21600 |
- | 161 2 | x | = | - | 21600 |
21600 | = | 161 2 | x |
161 2 | x | = | 21600 |
x | = | 21600 | ÷ | 161 2 |
= | 21600 | × | 2 161 |
x | = | 43200 161 |
x | = | 268.322981 |