| ( | x | − | 5000 | ) | × | 10 100 | − | 2520 | = | x | − | 40000 |
| Left side of the equation = | x | × | 10 100 | − | 5000 | × | 10 100 | − | 2520 |
| = | x | × | 10 100 | − | 500 | − | 2520 |
| = | 10 100 | x | − | 3020 |
10 100 | x | − | 3020 | = | x | − | 40000 |
10 100 | x | − | x | = | - | 40000 | + | 3020 |
| - | 9 10 | x | = | - | 40000 | + | 3020 |
| - | 9 10 | x | = | - | 36980 |
| 36980 | = | 9 10 | x |
9 10 | x | = | 36980 |
| x | = | 36980 | ÷ | 9 10 |
| = | 36980 | × | 10 9 |
| x | = | 369800 9 |
| x | = | 41088.888889 |