| ( | X | − | 1860 | − | 5000 | ) | × | 1 10 | − | 255 | = | X | − | 484653 50 | − | 2550 |
| Left side of the equation = | X | × | 1 10 | − | 1860 | × | 1 10 | − | 5000 | × | 1 10 | − | 255 |
| = | X | × | 1 10 | − | 186 | − | 500 | − | 255 |
| = | 1 10 | X | − | 941 |
1 10 | X | − | 941 | = | X | − | 484653 50 | − | 2550 |
| Right side of the equation = | X | − | 612153 50 |
1 10 | X | − | 941 | = | X | − | 612153 50 |
1 10 | X | − | X | = | - | 612153 50 | + | 941 |
| - | 9 10 | X | = | - | 612153 50 | + | 941 |
| - | 9 10 | X | = | - | 565103 50 |
565103 50 | = | 9 10 | X |
9 10 | X | = | 565103 50 |
| X | = | 565103 50 | ÷ | 9 10 |
| = | 565103 50 | × | 10 9 |
| = | 565103 5 | × | 1 9 |
| X | = | 565103 45 |
| X | = | 12557.844444 |