| 570 | x | + | ( | 2700 | − | x | ) | × | 525 | = | 1471500 |
| Left side of the equation = | 570 | x | + | 2700 | × | 525 | − | x | × | 525 |
| = | 570 | x | + | 1417500 | − | x | × | 525 |
| = | 45 | x | + | 1417500 |
| 45 | x | + | 1417500 | = | 1471500 |
| 45 | x | = | 1471500 | − | 1417500 |
| 45 | x | = | 54000 |
| x | = | 54000 | ÷ | 45 |
| = | 54000 | × | 1 45 |
| = | 1200 | × | 1 |
| x | = | 1200 |