| ( | 4175600 | x | − | 419619600 | ) | × | 3819 5 | ÷ | 730 | = | 3203200 | x | − | 2860 | x | x |
| Left side of the equation = | ( | 4175600 | x | − | 419619600 | ) | × | 3819 3650 |
| ( | 4175600 | x | − | 419619600 | ) | × | 3819 3650 | = | 3203200 | x | − | 2860 | x | x |
| Left side of the equation = | 4175600 | x | × | 3819 3650 | − | 419619600 | × | 3819 3650 |