| 56 | x | − | ( | 580 | + | 40 | x | ) | − | ( | ( | 56 | x | × | 13 100 | ) | − | 5 | x | × | 3 25 | ) | = | 0 |
| Left side of the equation = | 56 | x | − | 580 | − | 40 | x | − | ( | ( | 56 | x | × | 13 100 | ) | − | 5 | x | × | 3 25 | ) |
| = | 16 | x | − | 580 | − | ( | ( | 56 | x | × | 13 100 | ) | − | 5 | x | × | 3 25 | ) |
| = | 16 | x | − | 580 | − | ( | 56 | x | × | 13 100 | ) | + | 5 | x | × | 3 25 |
| = | 16 | x | − | 580 | − | ( | 56 | x | × | 13 100 | ) | + | 3 5 | x |
| = | 83 5 | x | − | 580 | − | ( | 56 | x | × | 13 100 | ) |
| = | 83 5 | x | − | 580 | − | 56 | x | × | 13 100 |
| = | 83 5 | x | − | 580 | − | 182 25 | x |
| = | 233 25 | x | − | 580 |
233 25 | x | − | 580 | = | 0 |
233 25 | x | = | 0 | + | 580 |
233 25 | x | = | 580 |
| x | = | 580 | ÷ | 233 25 |
| = | 580 | × | 25 233 |
| x | = | 14500 233 |
| x | = | 62.23176 |