| X | − | X | × | 13 200 | − | ( | X | + | 2118868 5 | ) | = | 2118868 5 |
| Left side of the equation = | 187 200 | X | − | ( | X | + | 2118868 5 | ) |
187 200 | X | − | ( | X | + | 2118868 5 | ) | = | 2118868 5 |
| Left side of the equation = | 187 200 | X | − | X | − | 2118868 5 |
| = | - | 13 200 | X | − | 2118868 5 |
| - | 13 200 | X | − | 2118868 5 | = | 2118868 5 |
| - | 13 200 | X | = | 2118868 5 | + | 2118868 5 |
| - | 13 200 | X | = | 4237736 5 |
| - | 4237736 5 | = | 13 200 | X |
13 200 | X | = | - | 4237736 5 |
| X | = | - | 4237736 5 | ÷ | 13 200 |
| = | - | 4237736 5 | × | 200 13 |
| = | - | 4237736 | × | 40 13 |
| X | = | - | 169509440 13 |
| X | = | - 13039187.692307999 |