| ( | 5000 | × | 12 | × | 9 10 | − | 7 10 | × | 130 | x | × | 8 125 | ) | ÷ | ( | 3 100 | × | 130 | x | + | 1 20 | × | 130 | x | ) | = | 19 500 |
| Multiply both sides of the equation by: | ( | 3 100 | × | 130 | x | + | 1 20 | × | 130 | x | ) |
| ( | 5000 | × | 12 | × | 9 10 | − | 7 10 | × | 130 | x | × | 8 125 | ) | = | 19 500 | ( | 3 100 | × | 130 | x | + | 1 20 | × | 130 | x | ) |
| 5000 | × | 12 | × | 9 10 | − | 7 10 | × | 130 | x | × | 8 125 | = | 19 500 | ( | 3 100 | × | 130 | x | + | 1 20 | × | 130 | x | ) |
| 5000 | × | 12 | × | 9 10 | − | 7 10 | × | 130 | x | × | 8 125 | = | 19 500 | × | 3 100 | × | 130 | x | + | 19 500 | × | 1 20 | × | 130 | x |
| 54000 | − | 728 125 | x | = | 741 5000 | x | + | 247 1000 | x |
| 54000 | − | 728 125 | x | = | 247 625 | x |
| - | 728 125 | x | − | 247 625 | x | = | - | 54000 |
| - | 3887 625 | x | = | - | 54000 |
| 54000 | = | 3887 625 | x |
3887 625 | x | = | 54000 |
| x | = | 54000 | ÷ | 3887 625 |
| = | 54000 | × | 625 3887 |
| x | = | 33750000 3887 |
| x | = | 8682.788783 |