| 15 | ÷ | 103 | + | 3 | ÷ | 50 | + | 6 | ÷ | 6679 50 | + | X | ÷ | 500 | + | ( | 713 10 | − | X | ) | ÷ | 1650 | = | 147 500 |
| Left side of the equation = | 15 103 | + | 3 50 | + | 300 6679 | + | X | × | 1 500 | + | ( | 713 10 | − | X | ) | × | 1 1650 |
| = | 8618061 34396850 | + | 1 500 | X | + | ( | 713 10 | − | X | ) | × | 1 1650 |
8618061 34396850 | + | 1 500 | X | + | ( | 713 10 | − | X | ) | × | 1 1650 | = | 147 500 |
| Left side of the equation = | 8618061 34396850 | + | 1 500 | X | + | 713 10 | × | 1 1650 | − | X | × | 1 1650 |
| = | 8618061 34396850 | + | 1 500 | X | + | 713 16500 | − | X | × | 1 1650 |