| ( | ( | 10000 | − | 8000 | ) | ÷ | ( | p | × | 2 | − | 100 | ) | ) | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | = | 0 |
| ( | 10000 | − | 8000 | ) | ÷ | ( | p | × | 2 | − | 100 | ) | × | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | = | 0 |
| 方程两边同时乘以: | ( | p | × | 2 | − | 100 | ) |
| ( | 10000 | − | 8000 | ) | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | = | 0 |
| 10000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | = | 0 |
| 10000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | = | 0 |
| 方程两边同时乘以: | ( | 8000 | + | 10000 | ) |
| 10000 | ( | 100 | + | p | × | 2 | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) | = | 0 |
| 10000 | × | 100 | + | 10000 | p | × | 2 | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) | = | 0 |
| 1000000 | + | 20000 | p | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) | = | 0 |
| 1000000 | + | 20000 | p | − | 8000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | × | ( | 8000 | + | 10000 | ) | = | 0 |
| 方程两边同时乘以: | ( | 8000 | + | 10000 | ) |
| 1000000 | ( | 8000 | + | 10000 | ) | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) | = | 0 |
| 1000000 | × | 8000 | + | 1000000 | × | 10000 | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) | = | 0 |
| 8000000000 | + | 10000000000 | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) | = | 0 |