| ( | 12812 | × | 199 5000 | − | X | ) | ÷ | ( | 12812 | − | X | ) | = | 1 10 |
| Multiply both sides of the equation by: | ( | 12812 | − | X | ) |
| ( | 12812 | × | 199 5000 | − | X | ) | = | 1 10 | ( | 12812 | − | X | ) |
| 12812 | × | 199 5000 | − | X | = | 1 10 | ( | 12812 | − | X | ) |
| 12812 | × | 199 5000 | − | X | = | 1 10 | × | 12812 | − | 1 10 | X |
637397 1250 | − | X | = | 6406 5 | − | 1 10 | X |
| - | X | + | 1 10 | X | = | 6406 5 | − | 637397 1250 |
| - | 9 10 | X | = | 6406 5 | − | 637397 1250 |
| - | 9 10 | X | = | 964103 1250 |
| - | 964103 1250 | = | 9 10 | X |
9 10 | X | = | - | 964103 1250 |
| X | = | - | 964103 1250 | ÷ | 9 10 |
| = | - | 964103 1250 | × | 10 9 |
| = | - | 964103 125 | × | 1 9 |
| X | = | - | 964103 1125 |
| X | = | - 856.980444 |