| 340000000 | = | 143 10 | × | 750 | x | ( | 660 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 10725 | x | ( | 660 | − | x | ÷ | 2 | ) |
| 340000000 | = | 10725 | x | ( | 660 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 10725 | x | × | 660 | − | 10725 | x | x | ÷ | 2 |
| = | 7078500 | x | − | 10725 2 | x | x |
| 340000000 | = | 7078500 | x | − | 10725 2 | x | x |