| 5 | ÷ | 4457 50 | + | 3 | ÷ | 6679 50 | + | X | ÷ | 447 10 | + | ( | 447 5 | − | X | ) | ÷ | 1000 | = | 17 50 |
| Left side of the equation = | 250 4457 | + | 150 6679 | + | X | × | 10 447 | + | ( | 447 5 | − | X | ) | × | 1 1000 |
| = | 2338300 29768303 | + | 10 447 | X | + | ( | 447 5 | − | X | ) | × | 1 1000 |
2338300 29768303 | + | 10 447 | X | + | ( | 447 5 | − | X | ) | × | 1 1000 | = | 17 50 |
| Left side of the equation = | 2338300 29768303 | + | 10 447 | X | + | 447 5 | × | 1 1000 | − | X | × | 1 1000 |
| = | 2338300 29768303 | + | 10 447 | X | + | 447 5000 | − | X | × | 1 1000 |