( | 40 | + | x | ) | ÷ | ( | 20 | + | x | ) | = | 912 5 | ÷ | 538 5 |
方程两边同时乘以: | ( | 20 | + | x | ) |
( | 40 | + | x | ) | = | 912 5 | ÷ | 538 5 | × | ( | 20 | + | x | ) |
40 | + | x | = | 912 5 | ÷ | 538 5 | × | ( | 20 | + | x | ) |
40 | + | x | = | 912 5 | ÷ | 538 5 | × | 20 | + | 912 5 | ÷ | 538 5 | × | x |
40 | + | x | = | 9120 269 | + | 456 269 | x |
x | − | 456 269 | x | = | 9120 269 | − | 40 |
- | 187 269 | x | = | 9120 269 | − | 40 |
- | 187 269 | x | = | - | 1640 269 |
1640 269 | = | 187 269 | x |
187 269 | x | = | 1640 269 |
x | = | 1640 269 | ÷ | 187 269 |
= | 1640 269 | × | 269 187 |
x | = | 441160 50303 |
x | = | 8.770053 |