| ( | x | − | 257 25 | ) | ÷ | x | × | 100 100 | = | 31 100 |
| Multiply both sides of the equation by: | x |
| ( | x | − | 257 25 | ) | × | 100 100 | = | 31 100 | x |
| x | × | 100 100 | − | 257 25 | × | 100 100 | = | 31 100 | x |
| x | × | 100 100 | − | 257 25 | = | 31 100 | x |
100 100 | x | − | 31 100 | x | = | 257 25 |
69 100 | x | = | 257 25 |
| x | = | 257 25 | ÷ | 69 100 |
| = | 257 25 | × | 100 69 |
| = | 257 | × | 4 69 |
| x | = | 1028 69 |
| x | = | 14.898551 |