| ( | 197 4 | − | x | ) | ÷ | x | = | 1987 10000 |
| Multiply both sides of the equation by: | x |
| ( | 197 4 | − | x | ) | = | 1987 10000 | x |
197 4 | − | x | = | 1987 10000 | x |
| - | x | − | 1987 10000 | x | = | - | 197 4 |
| - | 11987 10000 | x | = | - | 197 4 |
197 4 | = | 11987 10000 | x |
11987 10000 | x | = | 197 4 |
| x | = | 197 4 | ÷ | 11987 10000 |
| = | 197 4 | × | 10000 11987 |
| = | 197 | × | 2500 11987 |
| x | = | 492500 11987 |
| x | = | 41.086177 |