| ( | X | − | 5000 | − | 1085 | ) | × | 3 100 | = | X | − | 21067 2 | − | 1085 |
| Left side of the equation = | X | × | 3 100 | − | 5000 | × | 3 100 | − | 1085 | × | 3 100 |
| = | X | × | 3 100 | − | 150 | − | 651 20 |
| = | 3 100 | X | − | 3651 20 |
3 100 | X | − | 3651 20 | = | X | − | 21067 2 | − | 1085 |
| Right side of the equation = | X | − | 23237 2 |
3 100 | X | − | 3651 20 | = | X | − | 23237 2 |
3 100 | X | − | X | = | - | 23237 2 | + | 3651 20 |
| - | 97 100 | X | = | - | 23237 2 | + | 3651 20 |
| - | 97 100 | X | = | - | 228719 20 |
228719 20 | = | 97 100 | X |
97 100 | X | = | 228719 20 |
| X | = | 228719 20 | ÷ | 97 100 |
| = | 228719 20 | × | 100 97 |
| = | 228719 | × | 5 97 |
| X | = | 1143595 97 |
| X | = | 11789.639175 |