| x | ÷ | ( | 10 | − | 2 | x | ) | × | ( | 10 | − | 2 | x | ) | = | 71 1000 |
| Multiply both sides of the equation by: | ( | 10 | − | 2 | x | ) |
| x | ( | 10 | − | 2 | x | ) | = | 71 1000 | ( | 10 | − | 2 | x | ) |
| x | × | 10 | − | x | × | 2 | x | = | 71 1000 | ( | 10 | − | 2 | x | ) |
| x | × | 10 | − | x | × | 2 | x | = | 71 1000 | × | 10 | − | 71 1000 | × | 2 | x |
| x | × | 10 | − | x | × | 2 | x | = | 71 100 | − | 71 500 | x |
| x= | 71 1000 |