1000 | ÷ | x | = | 1600 | ÷ | ( | x | + | 15 | ) |
方程两边同时乘以: | x | , | ( | x | + | 15 | ) |
1000 | ( | x | + | 15 | ) | = | 1600 | x |
1000 | x | + | 1000 | × | 15 | = | 1600 | x |
1000 | x | + | 15000 | = | 1600 | x |
1000 | x | − | 1600 | x | = | - | 15000 |
- | 600 | x | = | - | 15000 |
15000 | = | 600 | x |
600 | x | = | 15000 |
x | = | 15000 | ÷ | 600 |
= | 15000 | × | 1 600 |
= | 25 | × | 1 |
x | = | 25 |