191 10 | × | 800 | x | ( | 2296 | − | x | ÷ | 2 | ) | = | 3030400000 |
| Left side of the equation = | 15280 | x | ( | 2296 | − | x | ÷ | 2 | ) |
| 15280 | x | ( | 2296 | − | x | ÷ | 2 | ) | = | 3030400000 |
| Left side of the equation = | 15280 | x | × | 2296 | − | 15280 | x | x | ÷ | 2 |
| = | 35082880 | x | − | 7640 | x | x |
| 35082880 | x | − | 7640 | x | x | = | 3030400000 |