15 100 | = | ( | x | − | 123 100 | ) | ÷ | x |
| Multiply both sides of the equation by: | x |
15 100 | x | = | ( | x | − | 123 100 | ) |
15 100 | x | = | x | − | 123 100 |
15 100 | x | − | x | = | - | 123 100 |
| - | 17 20 | x | = | - | 123 100 |
123 100 | = | 17 20 | x |
17 20 | x | = | 123 100 |
| x | = | 123 100 | ÷ | 17 20 |
| = | 123 100 | × | 20 17 |
| = | 123 5 | × | 1 17 |
| x | = | 123 85 |
| x | = | 1.447059 |