| ( | ( | x | − | 800000 | − | 3500000 | × | 8 100 | ) | − | 75000 | ) | ÷ | 100 | = | ( | x | − | 800000 | ) | ÷ | 155 |
| Left side of the equation = | ( | x | − | 800000 | − | 3500000 | × | 8 100 | ) | × | 1 100 | − | 75000 | × | 1 100 |
| = | ( | x | − | 800000 | − | 3500000 | × | 8 100 | ) | × | 1 100 | − | 750 |
| = | x | × | 1 100 | − | 800000 | × | 1 100 | − | 3500000 | × | 8 100 | × | 1 100 | − | 750 |
| = | x | × | 1 100 | − | 8000 | − | 2800 | − | 750 |
| = | 1 100 | x | − | 11550 |
1 100 | x | − | 11550 | = | ( | x | − | 800000 | ) | ÷ | 155 |
| Right side of the equation = | x | × | 1 155 | − | 800000 | × | 1 155 |
| = | x | × | 1 155 | − | 160000 31 |
1 100 | x | − | 11550 | = | 1 155 | x | − | 160000 31 |
1 100 | x | − | 1 155 | x | = | - | 160000 31 | + | 11550 |
11 3100 | x | = | - | 160000 31 | + | 11550 |
11 3100 | x | = | 198050 31 |
| x | = | 198050 31 | ÷ | 11 3100 |
| = | 198050 31 | × | 3100 11 |
| = | 198050 | × | 100 11 |
| x | = | 19805000 11 |
| x | = | 1800454.545455 |