| - | 3001 100 | = | 161 10 | × | 1000 | X | ( | 125 | − | X | ÷ | 2 | ) |
| Right side of the equation = | 16100 | X | ( | 125 | − | X | ÷ | 2 | ) |
| - | 3001 100 | = | 16100 | X | ( | 125 | − | X | ÷ | 2 | ) |
| Right side of the equation = | 16100 | X | × | 125 | − | 16100 | X | X | ÷ | 2 |
| = | 2012500 | X | − | 8050 | X | X |
| - | 3001 100 | = | 2012500 | X | − | 8050 | X | X |