112 5 | × | 2400 | x | ( | 1720 | − | 1 2 | x | ) | = | 58871 10 | × | 1000000 |
| Left side of the equation = | 53760 | x | ( | 1720 | − | 1 2 | x | ) |
| 53760 | x | ( | 1720 | − | 1 2 | x | ) | = | 58871 10 | × | 1000000 |
| Left side of the equation = | 53760 | x | × | 1720 | − | 53760 | x | × | 1 2 | x |
| = | 92467200 | x | − | 26880 | x | x |
| 92467200 | x | − | 26880 | x | x | = | 58871 10 | × | 1000000 |