| ( | 18727 4 | − | X | ) | ÷ | X | = | 133 1000 |
| Multiply both sides of the equation by: | X |
| ( | 18727 4 | − | X | ) | = | 133 1000 | X |
18727 4 | − | X | = | 133 1000 | X |
| - | X | − | 133 1000 | X | = | - | 18727 4 |
| - | 1133 1000 | X | = | - | 18727 4 |
18727 4 | = | 1133 1000 | X |
1133 1000 | X | = | 18727 4 |
| X | = | 18727 4 | ÷ | 1133 1000 |
| = | 18727 4 | × | 1000 1133 |
| = | 18727 | × | 250 1133 |
| X | = | 4681750 1133 |
| X | = | 4132.171227 |