| - | 2 | = | ( | ( | 10000 | − | 8000 | ) | ÷ | ( | p | × | 2 | − | 100 | ) | ) | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| - | 2 | = | ( | 10000 | − | 8000 | ) | ÷ | ( | p | × | 2 | − | 100 | ) | × | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| Multiply both sides of the equation by: | ( | p | × | 2 | − | 100 | ) |
| - | 2 | ( | p | × | 2 | − | 100 | ) | = | ( | 10000 | − | 8000 | ) | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| - | 2 | p | × | 2 | + | 2 | × | 100 | = | ( | 10000 | − | 8000 | ) | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| - | 2 | p | × | 2 | + | 2 | × | 100 | = | 10000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| - | 4 | p | + | 200 | = | 10000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| - | 4 | p | + | 200 | = | 10000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) |
| Multiply both sides of the equation by: | ( | 8000 | + | 10000 | ) |
| - | 4 | p | ( | 8000 | + | 10000 | ) | + | 200 | ( | 8000 | + | 10000 | ) | = | 10000 | ( | 100 | + | p | × | 2 | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 4 | p | × | 8000 | − | 4 | p | × | 10000 | + | 200 | ( | 8000 | + | 10000 | ) | = | 10000 | ( | 100 | + | p | × | 2 | ) | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 4 | p | × | 8000 | − | 4 | p | × | 10000 | + | 200 | ( | 8000 | + | 10000 | ) | = | 10000 | × | 100 | + | 10000 | p | × | 2 | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 32000 | p | − | 40000 | p | + | 200 | ( | 8000 | + | 10000 | ) | = | 1000000 | + | 20000 | p | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | + | 200 | ( | 8000 | + | 10000 | ) | = | 1000000 | + | 20000 | p | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | + | 200 | × | 8000 | + | 200 | × | 10000 | = | 1000000 | + | 20000 | p | − | 8000 | ( | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | ) | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | + | 200 | × | 8000 | + | 200 | × | 10000 | = | 1000000 | + | 20000 | p | − | 8000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | × | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | + | 1600000 | + | 2000000 | = | 1000000 | + | 20000 | p | − | 8000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | × | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | + | 3600000 | = | 1000000 | + | 20000 | p | − | 8000 | ( | 100 | + | p | × | 2 | ) | ÷ | ( | 8000 | + | 10000 | ) | × | ( | 8000 | + | 10000 | ) |
| Multiply both sides of the equation by: | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | ( | 8000 | + | 10000 | ) | + | 3600000 | ( | 8000 | + | 10000 | ) | = | 1000000 | ( | 8000 | + | 10000 | ) | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | × | 8000 | − | 72000 | p | × | 10000 | + | 3600000 | ( | 8000 | + | 10000 | ) | = | 1000000 | ( | 8000 | + | 10000 | ) | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) |
| - | 72000 | p | × | 8000 | − | 72000 | p | × | 10000 | + | 3600000 | ( | 8000 | + | 10000 | ) | = | 1000000 | × | 8000 | + | 1000000 | × | 10000 | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) |
| - | 576000000 | p | − | 720000000 | p | + | 3600000 | ( | 8000 | + | 10000 | ) | = | 8000000000 | + | 10000000000 | + | 20000 | p | ( | 8000 | + | 10000 | ) | − | 8000 | ( | 100 | + | p | × | 2 | ) | ( | 8000 | + | 10000 | ) |