| 5 | x | = | ( | 170 | − | x | ) | ( | 23 10 | − | x | ) |
| Right side of the equation = | 170 | ( | 23 10 | − | x | ) | − | x | ( | 23 10 | − | x | ) |
| = | 170 | × | 23 10 | − | 170 | x | − | x | ( | 23 10 | − | x | ) |
| = | 391 | − | 170 | x | − | x | ( | 23 10 | − | x | ) |
| = | 391 | − | 170 | x | − | x | × | 23 10 | + | x | x |
| = | 391 | − | 1723 10 | x | + | x | x |
| 5 | x | = | 391 | − | 1723 10 | x | + | x | x |