( | 68 25 | + | x | ) | ÷ | ( | 1 | + | x | ) | = | 6 5 |
方程两边同时乘以: | ( | 1 | + | x | ) |
( | 68 25 | + | x | ) | = | 6 5 | ( | 1 | + | x | ) |
68 25 | + | x | = | 6 5 | ( | 1 | + | x | ) |
68 25 | + | x | = | 6 5 | × | 1 | + | 6 5 | x |
68 25 | + | x | = | 6 5 | + | 6 5 | x |
x | − | 6 5 | x | = | 6 5 | − | 68 25 |
- | 1 5 | x | = | 6 5 | − | 68 25 |
- | 1 5 | x | = | - | 38 25 |
38 25 | = | 1 5 | x |
1 5 | x | = | 38 25 |
x | = | 38 25 | ÷ | 1 5 |
= | 38 25 | × | 5 |
= | 38 5 | × | 1 |
x | = | 38 5 |
x | = | 7.6 |