| ( | 39331 | − | X | ) | × | 3 20 | ÷ | 2 | + | 1 5 | X | = | 0 |
| Left side of the equation = | ( | 39331 | − | X | ) | × | 3 40 | + | 1 5 | X |
| ( | 39331 | − | X | ) | × | 3 40 | + | 1 5 | X | = | 0 |
| Left side of the equation = | 39331 | × | 3 40 | − | X | × | 3 40 | + | 1 5 | X |
| = | 117993 40 | − | X | × | 3 40 | + | 1 5 | X |
| = | 117993 40 | + | 1 8 | X |
117993 40 | + | 1 8 | X | = | 0 |
1 8 | X | = | 0 | − | 117993 40 |
1 8 | X | = | - | 117993 40 |
| X | = | - | 117993 40 | ÷ | 1 8 |
| = | - | 117993 40 | × | 8 |
| = | - | 117993 5 | × | 1 |
| X | = | - | 117993 5 |
| X | = | - 23598.6 |