( | 6 | x | + | 180 | ) | ÷ | ( | 5 | x | + | 30 | ) | = | 18 | ÷ | 11 |
方程两边同时乘以: | ( | 5 | x | + | 30 | ) |
( | 6 | x | + | 180 | ) | = | 18 | ÷ | 11 | × | ( | 5 | x | + | 30 | ) |
6 | x | + | 180 | = | 18 | ÷ | 11 | × | ( | 5 | x | + | 30 | ) |
6 | x | + | 180 | = | 18 | ÷ | 11 | × | 5 | x | + | 18 | ÷ | 11 | × | 30 |
6 | x | + | 180 | = | 90 11 | x | + | 540 11 |
6 | x | − | 90 11 | x | = | 540 11 | − | 180 |
- | 24 11 | x | = | 540 11 | − | 180 |
- | 24 11 | x | = | - | 1440 11 |
1440 11 | = | 24 11 | x |
24 11 | x | = | 1440 11 |
x | = | 1440 11 | ÷ | 24 11 |
= | 1440 11 | × | 11 24 |
= | 60 | × | 1 |
x | = | 60 |