| x | ÷ | ( | x | + | 12 125 | ) | = | 10521 10000 |
| Multiply both sides of the equation by: | ( | x | + | 12 125 | ) |
| x | = | 10521 10000 | ( | x | + | 12 125 | ) |
| x | = | 10521 10000 | x | + | 10521 10000 | × | 12 125 |
| x | = | 10521 10000 | x | + | 31563 312500 |
| x | − | 10521 10000 | x | = | 31563 312500 |
| - | 521 10000 | x | = | 31563 312500 |
| - | 31563 312500 | = | 521 10000 | x |
521 10000 | x | = | - | 31563 312500 |
| x | = | - | 31563 312500 | ÷ | 521 10000 |
| = | - | 31563 312500 | × | 10000 521 |
| = | - | 31563 125 | × | 4 521 |
| x | = | - | 126252 65125 |
| x | = | - 1.93861 |