3 | = | 100 | ( | x | − | 216 | ) | ÷ | ( | x | × | 700 | ÷ | 100 | ) |
方程两边同时乘以: | ( | x | × | 700 | ÷ | 100 | ) |
3 | ( | x | × | 700 | ÷ | 100 | ) | = | 100 | ( | x | − | 216 | ) |
3 | x | × | 700 | ÷ | 100 | = | 100 | ( | x | − | 216 | ) |
3 | x | × | 700 | ÷ | 100 | = | 100 | x | − | 100 | × | 216 |
21 | x | = | 100 | x | − | 21600 |
21 | x | − | 100 | x | = | - | 21600 |
- | 79 | x | = | - | 21600 |
21600 | = | 79 | x |
79 | x | = | 21600 |
x | = | 21600 | ÷ | 79 |
= | 21600 | × | 1 79 |
x | = | 21600 79 |
x | = | 273.417722 |