| ( | 389 | − | x | ) | ÷ | 333 | = | - | 11 100 |
| Left side of the equation = | 389 | × | 1 333 | − | x | × | 1 333 |
| = | 389 333 | − | x | × | 1 333 |
389 333 | − | 1 333 | x | = | - | 11 100 |
| - | 1 333 | x | = | - | 11 100 | − | 389 333 |
| - | 1 333 | x | = | - | 42563 33300 |
42563 33300 | = | 1 333 | x |
1 333 | x | = | 42563 33300 |
| x | = | 42563 33300 | ÷ | 1 333 |
| = | 42563 33300 | × | 333 |
| = | 42563 100 | × | 1 |
| x | = | 42563 100 |
| x | = | 425.63 |