( | 1000 | p | + | 25000 | ) | × | 25 100 | = | 1000 | p | ( | 1 | − | 5 100 | ) | − | 1000 | × | 50 | + | 25000 |
方程左边 = | 1000 | p | × | 25 100 | + | 25000 | × | 25 100 |
= | 250 | p | + | 6250 |
250 | p | + | 6250 | = | 1000 | p | ( | 1 | − | 5 100 | ) | − | 1000 | × | 50 | + | 25000 |
方程右边 = | 1000 | p | ( | 1 | − | 5 100 | ) | − | 50000 | + | 25000 |
= | 1000 | p | ( | 1 | − | 5 100 | ) | − | 25000 |
250 | p | + | 6250 | = | 1000 | p | ( | 1 | − | 5 100 | ) | − | 25000 |
方程右边 = | 1000 | p | × | 1 | − | 1000 | p | × | 5 100 | − | 25000 |
= | 1000 | p | − | 50 | p | − | 25000 |
= | 950 | p | − | 25000 |
250 | p | + | 6250 | = | 950 | p | − | 25000 |
250 | p | − | 950 | p | = | - | 25000 | − | 6250 |
- | 700 | p | = | - | 25000 | − | 6250 |
- | 700 | p | = | - | 31250 |
31250 | = | 700 | p |
700 | p | = | 31250 |
p | = | 31250 | ÷ | 700 |
= | 31250 | × | 1 700 |
= | 625 | × | 1 14 |
p | = | 625 14 |
p | = | 44.642857 |