1000 | − | 30 | ( | ( | 1 | − | K | ) | ÷ | 3 250 | ) | = | 0 |
方程左边 = | 1000 | − | 30 | ( | 1 | − | K | ) | ÷ | 3 250 |
= | 1000 | − | 2500 | ( | 1 | − | K | ) |
= | 1000 | − | 2500 | × | 1 | + | 2500 | K |
= | 1000 | − | 2500 | + | 2500 | K |
= | - | 1500 | + | 2500 | K |
- | 1500 | + | 2500 | K | = | 0 |
2500 | K | = | 0 | + | 1500 |
2500 | K | = | 1500 |
K | = | 1500 | ÷ | 2500 |
= | 1500 | × | 1 2500 |
= | 3 | × | 1 5 |
K | = | 3 5 |
K | = | 0.6 |