| ( | x | − | 192 5 | ) | ÷ | 1920 | × | 100 | = | 15 |
| Left side of the equation = | ( | x | − | 192 5 | ) | × | 5 96 |
| ( | x | − | 192 5 | ) | × | 5 96 | = | 15 |
| Left side of the equation = | x | × | 5 96 | − | 192 5 | × | 5 96 |
| = | x | × | 5 96 | − | 2 |
5 96 | x | − | 2 | = | 15 |
5 96 | x | = | 15 | + | 2 |
5 96 | x | = | 17 |
| x | = | 17 | ÷ | 5 96 |
| = | 17 | × | 96 5 |
| x | = | 1632 5 |
| x | = | 326.4 |