| ( | ( | a | ( | 1 | + | 5 100 | ) | × | 10000 | ÷ | a | × | 20 100 | + | a | ( | 1 | − | 74 2500 | ) | × | 10000 | ÷ | a | × | ( | 1 | − | 20 100 | ) | ) | − | 10000 | ) | ÷ | 10000 | = | 0 |
| ( | a | ( | 1 | + | 5 100 | ) | × | 10000 | ÷ | a | × | 20 100 | + | a | ( | 1 | − | 74 2500 | ) | × | 10000 | ÷ | a | × | ( | 1 | − | 20 100 | ) | ) | ÷ | 10000 | − | 10000 | ÷ | 10000 | = | 0 |
| ( | a | ( | 1 | + | 5 100 | ) | × | 10000 | ÷ | a | × | 20 100 | + | a | ( | 1 | − | 74 2500 | ) | × | 10000 | ÷ | a | × | ( | 1 | − | 20 100 | ) | ) | × | 1 10000 | − | 1 | = | 0 |
| a | ( | 1 | + | 5 100 | ) | × | 10000 | ÷ | a | × | 20 100 | × | 1 10000 | + | a | ( | 1 | − | 74 2500 | ) | × | 10000 | ÷ | a | × | ( | 1 | − | 20 100 | ) | × | 1 10000 | = | 0 |
| a | ( | 1 | + | 5 100 | ) | × | 1 5 | ÷ | a | + | a | ( | 1 | − | 74 2500 | ) | × | 1 | ÷ | a | × | ( | 1 | − | 20 100 | ) | − | 1 | = | 0 |
| 1 | × | 1 | × | 1 5 | ÷ | 1 | + | 1 | × | 5 100 | × | 1 5 | ÷ | 1 | + | 1 | ( | 1 | − | 74 2500 | ) | × | 1 | ÷ | 1 | = | 0 |
1 5 | + | 1 100 | + | 1 | ( | 1 | − | 74 2500 | ) | ( | 1 | − | 20 100 | ) | − | 1 | = | 0 |
| - | 79 100 | + | 1 | ( | 1 | − | 74 2500 | ) | ( | 1 | − | 20 100 | ) | = | 0 |
| - | 79 100 | + | 1 | × | 1 | ( | 1 | − | 20 100 | ) | − | 1 | × | 74 2500 | ( | 1 | − | 20 100 | ) | = | 0 |
| - | 79 100 | + | 1 | ( | 1 | − | 20 100 | ) | − | 37 1250 | ( | 1 | − | 20 100 | ) | = | 0 |
| - | 79 100 | + | 1 | × | 1 | − | 1 | × | 20 100 | − | 37 1250 | ( | 1 | − | 20 100 | ) | = | 0 |
| - | 79 100 | + | 1 | − | 1 5 | − | 37 1250 | ( | 1 | − | 20 100 | ) | = | 0 |
1 100 | − | 37 1250 | ( | 1 | − | 20 100 | ) | = | 0 |
1 100 | − | 37 1250 | × | 1 | + | 37 1250 | × | 20 100 | = | 0 |
1 100 | − | 37 1250 | + | 37 6250 | = | 0 |
| - | 171 12500 | = | 0 |
| = | 0 | + | 171 12500 |