| 6438 | + | ( | 301 50 | − | x | ) | × | 6438 | = | 5296 |
| Left side of the equation = | 6438 | + | 301 50 | × | 6438 | − | x | × | 6438 |
| = | 6438 | + | 968919 25 | − | x | × | 6438 |
| = | 1129869 25 | − | 6438 | x |
1129869 25 | − | 6438 | x | = | 5296 |
| - | 6438 | x | = | 5296 | − | 1129869 25 |
| - | 6438 | x | = | - | 997469 25 |
997469 25 | = | 6438 | x |
| 6438 | x | = | 997469 25 |
| x | = | 997469 25 | ÷ | 6438 |
| = | 997469 25 | × | 1 6438 |
| x | = | 997469 160950 |
| x | = | 6.197384 |