( | ( | 2500 | − | x | ) | ÷ | 2500 | ) | × | 100 | = | 6 500 |
方程左边 = | ( | 2500 | − | x | ) | ÷ | 2500 | × | 100 |
= | ( | 2500 | − | x | ) | × | 1 25 |
= | 2500 | × | 1 25 | − | x | × | 1 25 |
= | 100 | − | x | × | 1 25 |
100 | − | 1 25 | x | = | 6 500 |
- | 1 25 | x | = | 6 500 | − | 100 |
- | 1 25 | x | = | - | 24997 250 |
24997 250 | = | 1 25 | x |
1 25 | x | = | 24997 250 |
x | = | 24997 250 | ÷ | 1 25 |
= | 24997 250 | × | 25 |
= | 24997 10 | × | 1 |
x | = | 24997 10 |
x | = | 2499.7 |