1500 | ÷ | ( | 2 | x | ) | = | 1000 | ÷ | ( | 10 | + | x | ) |
方程两边同时乘以: | ( | 2 | x | ) | , | ( | 10 | + | x | ) |
1500 | ( | 10 | + | x | ) | = | 1000 | ( | 2 | x | ) |
1500 | × | 10 | + | 1500 | x | = | 1000 | ( | 2 | x | ) |
1500 | × | 10 | + | 1500 | x | = | 1000 | × | 2 | x |
15000 | + | 1500 | x | = | 2000 | x |
1500 | x | − | 2000 | x | = | - | 15000 |
- | 500 | x | = | - | 15000 |
15000 | = | 500 | x |
500 | x | = | 15000 |
x | = | 15000 | ÷ | 500 |
= | 15000 | × | 1 500 |
= | 30 | × | 1 |
x | = | 30 |