| ( | X | − | 6039 50 | ) | × | 10 | − | 3 5 | − | 3 5 | = | 2 |
| Left side of the equation = | ( | X | − | 6039 50 | ) | × | 10 | − | 6 5 |
| ( | X | − | 6039 50 | ) | × | 10 | − | 6 5 | = | 2 |
| Left side of the equation = | X | × | 10 | − | 6039 50 | × | 10 | − | 6 5 |
| = | X | × | 10 | − | 6039 5 | − | 6 5 |
| = | 10 | X | − | 1209 |
| 10 | X | − | 1209 | = | 2 |
| 10 | X | = | 2 | + | 1209 |
| 10 | X | = | 1211 |
| X | = | 1211 | ÷ | 10 |
| = | 1211 | × | 1 10 |
| X | = | 1211 10 |
| X | = | 121.1 |