2858 5 | X | + | 2220 | ( | 5 | − | X | ) | = | 3847 |
| Left side of the equation = | 2858 5 | X | + | 2220 | × | 5 | − | 2220 | X |
| = | 2858 5 | X | + | 11100 | − | 2220 | X |
| = | - | 8242 5 | X | + | 11100 |
| - | 8242 5 | X | + | 11100 | = | 3847 |
| - | 8242 5 | X | = | 3847 | − | 11100 |
| - | 8242 5 | X | = | - | 7253 |
| 7253 | = | 8242 5 | X |
8242 5 | X | = | 7253 |
| X | = | 7253 | ÷ | 8242 5 |
| = | 7253 | × | 5 8242 |
| X | = | 36265 8242 |
| X | = | 4.400024 |