| ( | 1050 | × | 12 | − | 70 100 | × | 60 | X | × | 36 500 | ) | ÷ | ( | 30 100 | × | 60 | X | + | 2 100 | × | 60 | X | ) | = | 19 500 |
| Multiply both sides of the equation by: | ( | 30 100 | × | 60 | X | + | 2 100 | × | 60 | X | ) |
| ( | 1050 | × | 12 | − | 70 100 | × | 60 | X | × | 36 500 | ) | = | 19 500 | ( | 30 100 | × | 60 | X | + | 2 100 | × | 60 | X | ) |
| 1050 | × | 12 | − | 70 100 | × | 60 | X | × | 36 500 | = | 19 500 | ( | 30 100 | × | 60 | X | + | 2 100 | × | 60 | X | ) |
| 1050 | × | 12 | − | 70 100 | × | 60 | X | × | 36 500 | = | 19 500 | × | 30 100 | × | 60 | X | + | 19 500 | × | 2 100 | × | 60 | X |
| 12600 | − | 378 125 | X | = | 171 250 | X | + | 57 1250 | X |
| 12600 | − | 378 125 | X | = | 456 625 | X |
| - | 378 125 | X | − | 456 625 | X | = | - | 12600 |
| - | 2346 625 | X | = | - | 12600 |
| 12600 | = | 2346 625 | X |
2346 625 | X | = | 12600 |
| X | = | 12600 | ÷ | 2346 625 |
| = | 12600 | × | 625 2346 |
| = | 2100 | × | 625 391 |
| X | = | 1312500 391 |
| X | = | 3356.777494 |