x | ÷ | 15 | + | 24 | ÷ | 60 | = | x | ÷ | 12 | + | 15 | ÷ | 60 |
方程左边 = | x | × | 1 15 | + | 2 5 |
1 15 | x | + | 2 5 | = | x | ÷ | 12 | + | 15 | ÷ | 60 |
方程右边 = | x | × | 1 12 | + | 1 4 |
1 15 | x | + | 2 5 | = | 1 12 | x | + | 1 4 |
1 15 | x | − | 1 12 | x | = | 1 4 | − | 2 5 |
- | 1 60 | x | = | 1 4 | − | 2 5 |
- | 1 60 | x | = | - | 3 20 |
3 20 | = | 1 60 | x |
1 60 | x | = | 3 20 |
x | = | 3 20 | ÷ | 1 60 |
= | 3 20 | × | 60 |
= | 3 | × | 3 |
x | = | 9 |