| 50000 | X | ( | 16000 | ÷ | 50000 | − | 8000 | − | 50000 | ) | − | 50000 | ( | 1 | + | X | ) | × | 8 100 | × | 10 100 | = | 0 |
| Left side of the equation = | 50000 | X | ( | 16000 | ÷ | 50000 | − | 8000 | − | 50000 | ) | − | 400 | ( | 1 | + | X | ) |
| 50000 | X | ( | 16000 | ÷ | 50000 | − | 8000 | − | 50000 | ) | − | 400 | ( | 1 | + | X | ) | = | 0 |
| Left side of the equation = | 50000 | X | × | 16000 | ÷ | 50000 | − | 50000 | X | × | 8000 | − | 50000 | X | × | 50000 | − | 400 | ( | 1 | + | X | ) |
| = | 16000 | X | − | 400000000 | X | − | 2500000000 | X | − | 400 | ( | 1 | + | X | ) |
| = | - | 2899984000 | X | − | 400 | ( | 1 | + | X | ) |
| = | - | 2899984000 | X | − | 400 | × | 1 | − | 400 | X |
| = | - | 2899984000 | X | − | 400 | − | 400 | X |
| = | - | 2899984400 | X | − | 400 |
| - | 2899984400 | X | − | 400 | = | 0 |
| - | 2899984400 | X | = | 0 | + | 400 |
| - | 2899984400 | X | = | 400 |
| - | 400 | = | 2899984400 | X |
| 2899984400 | X | = | - | 400 |
| X | = | - | 400 | ÷ | 2899984400 |
| = | - | 400 | × | 1 2899984400 |
| = | - | 1 | × | 1 7249961 |
| X | = | - | 1 7249961 |
| X | = | - 0 |