| 3996600000 | = | 92 5 | × | 1800 | x | ( | 1500 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 33120 | x | ( | 1500 | − | x | ÷ | 2 | ) |
| 3996600000 | = | 33120 | x | ( | 1500 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 33120 | x | × | 1500 | − | 33120 | x | x | ÷ | 2 |
| = | 49680000 | x | − | 16560 | x | x |
| 3996600000 | = | 49680000 | x | − | 16560 | x | x |