| x | ÷ | ( | ( | 7 100 | − | x | ) | ( | 7 10 | − | x | ) | ) | = | 710 |
| Multiply both sides of the equation by: | ( | ( | 7 100 | − | x | ) | ( | 7 10 | − | x | ) | ) |
| x | = | 710 | ( | ( | 7 100 | − | x | ) | ( | 7 10 | − | x | ) | ) |
| x | = | 710 | ( | 7 100 | − | x | ) | ( | 7 10 | − | x | ) |
| x | = | 710 | × | 7 100 | ( | 7 10 | − | x | ) | − | 710 | x | ( | 7 10 | − | x | ) |
| x | = | 497 10 | ( | 7 10 | − | x | ) | − | 710 | x | ( | 7 10 | − | x | ) |
| x | = | 497 10 | × | 7 10 | − | 497 10 | x | − | 710 | x | ( | 7 10 | − | x | ) |
| x | = | 3479 100 | − | 497 10 | x | − | 710 | x | ( | 7 10 | − | x | ) |
| x | = | 3479 100 | − | 497 10 | x | − | 710 | x | × | 7 10 | + | 710 | x | x |
| x | = | 3479 100 | − | 497 10 | x | − | 497 | x | + | 710 | x | x |
| x | = | 3479 100 | − | 5467 10 | x | + | 710 | x | x |