| 2150000000 | = | 69 5 | × | 1600 | X | ( | 1179 | − | X | ÷ | 2 | ) |
| Right side of the equation = | 22080 | X | ( | 1179 | − | X | ÷ | 2 | ) |
| 2150000000 | = | 22080 | X | ( | 1179 | − | X | ÷ | 2 | ) |
| Right side of the equation = | 22080 | X | × | 1179 | − | 22080 | X | X | ÷ | 2 |
| = | 26032320 | X | − | 11040 | X | X |
| 2150000000 | = | 26032320 | X | − | 11040 | X | X |