2013 100 | = | 112 5 | × | 688 | x | ( | 11 100 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 77056 5 | x | ( | 11 100 | − | x | ÷ | 2 | ) |
2013 100 | = | 77056 5 | x | ( | 11 100 | − | x | ÷ | 2 | ) |
| Right side of the equation = | 77056 5 | x | × | 11 100 | − | 77056 5 | x | x | ÷ | 2 |
| = | 211904 125 | x | − | 38528 5 | x | x |
2013 100 | = | 211904 125 | x | − | 38528 5 | x | x |