| x | − | x | × | 13 200 | − | ( | x | + | 850000 | ) | × | 3 10000 | = | 850000 |
| Left side of the equation = | 187 200 | x | − | ( | x | + | 850000 | ) | × | 3 10000 |
187 200 | x | − | ( | x | + | 850000 | ) | × | 3 10000 | = | 850000 |
| Left side of the equation = | 187 200 | x | − | x | × | 3 10000 | − | 850000 | × | 3 10000 |
| = | 187 200 | x | − | x | × | 3 10000 | − | 255 |
| = | 9347 10000 | x | − | 255 |
9347 10000 | x | − | 255 | = | 850000 |
9347 10000 | x | = | 850000 | + | 255 |
9347 10000 | x | = | 850255 |
| x | = | 850255 | ÷ | 9347 10000 |
| = | 850255 | × | 10000 9347 |
| x | = | 8502550000 9347 |
| x | = | 909655.50444 |