| 17 | ÷ | 102 | + | X | ÷ | 1000 | + | ( | 287 5 | − | X | ) | ÷ | 1650 | + | 4 | ÷ | 447 10 | + | 4 | ÷ | 53 | = | 61 200 |
| Left side of the equation = | 1 6 | + | X | × | 1 1000 | + | ( | 287 5 | − | X | ) | × | 1 1650 | + | 40 447 | + | 4 53 |
| = | 15713 47382 | + | 1 1000 | X | + | ( | 287 5 | − | X | ) | × | 1 1650 |
15713 47382 | + | 1 1000 | X | + | ( | 287 5 | − | X | ) | × | 1 1650 | = | 61 200 |
| Left side of the equation = | 15713 47382 | + | 1 1000 | X | + | 287 5 | × | 1 1650 | − | X | × | 1 1650 |
| = | 15713 47382 | + | 1 1000 | X | + | 287 8250 | − | X | × | 1 1650 |
| = | 11935907 32575125 | + | 13 33000 | X |
11935907 32575125 | + | 13 33000 | X | = | 61 200 |
13 33000 | X | = | 61 200 | − | 11935907 32575125 |
13 33000 | X | = | - | 16003951 260601000 |
| X | = | - | 16003951 260601000 | ÷ | 13 33000 |
| = | - | 16003951 260601000 | × | 33000 13 |
| = | - | 16003951 7897 | × | 1 13 |
| X | = | - | 16003951 102661 |
| X | = | - 155.891244 |