| x | ÷ | ( | x | + | 550 | ) | = | 7 100 |
| Multiply both sides of the equation by: | ( | x | + | 550 | ) |
| x | = | 7 100 | ( | x | + | 550 | ) |
| x | = | 7 100 | x | + | 7 100 | × | 550 |
| x | = | 7 100 | x | + | 77 2 |
| x | − | 7 100 | x | = | 77 2 |
93 100 | x | = | 77 2 |
| x | = | 77 2 | ÷ | 93 100 |
| = | 77 2 | × | 100 93 |
| = | 77 | × | 50 93 |
| x | = | 3850 93 |
| x | = | 41.397849 |