6 5 | X | + | 3 2 | − | 3 2 | X | = | 18 | × | 2 |
| Left side of the equation = | - | 3 10 | X | + | 3 2 |
| - | 3 10 | X | + | 3 2 | = | 18 | × | 2 |
| Right side of the equation = | 36 |
| - | 3 10 | X | + | 3 2 | = | 36 |
| - | 3 10 | X | = | 36 | − | 3 2 |
| - | 3 10 | X | = | 69 2 |
| - | 69 2 | = | 3 10 | X |
3 10 | X | = | - | 69 2 |
| X | = | - | 69 2 | ÷ | 3 10 |
| = | - | 69 2 | × | 10 3 |
| = | - | 23 | × | 5 |
| X | = | - | 115 |