3 10 | ÷ | ( | 2000 | − | p | ) | ÷ | 2000 | = | - | 2 |
方程两边同时乘以: | ( | 2000 | − | p | ) |
3 10 | ÷ | 2000 | = | - | 2 | ( | 2000 | − | p | ) |
3 10 | ÷ | 2000 | = | - | 2 | × | 2000 | + | 2 | p |
3 20000 | = | - | 4000 | + | 2 | p |
- | 2 | p | = | - | 4000 | − | 3 20000 |
- | 2 | p | = | - | 80000003 20000 |
80000003 20000 | = | 2 | p |
2 | p | = | 80000003 20000 |
p | = | 80000003 20000 | ÷ | 2 |
= | 80000003 20000 | × | 1 2 |
p | = | 80000003 40000 |
p | = | 2000.000075 |