| ( | 957 100 | − | x | ) | ÷ | x | × | 100 | = | 409 50 |
| Multiply both sides of the equation by: | x |
| ( | 957 100 | − | x | ) | × | 100 | = | 409 50 | x |
957 100 | × | 100 | − | x | × | 100 | = | 409 50 | x |
| 957 | − | x | × | 100 | = | 409 50 | x |
| - | 100 | x | − | 409 50 | x | = | - | 957 |
| - | 5409 50 | x | = | - | 957 |
| 957 | = | 5409 50 | x |
5409 50 | x | = | 957 |
| x | = | 957 | ÷ | 5409 50 |
| = | 957 | × | 50 5409 |
| = | 319 | × | 50 1803 |
| x | = | 15950 1803 |
| x | = | 8.846367 |