| 1 | ÷ | ( | x | + | 2 | ) | − | 1 | ÷ | ( | x | + | 3 | ) | = | 1 | ÷ | ( | x | + | 6 | ) | − | 1 | ÷ | ( | x | + | 7 | ) |
| Multiply both sides of the equation by: | ( | x | + | 2 | ) | , | ( | x | + | 6 | ) |
| 1 | ( | x | + | 6 | ) | − | 1 | ÷ | ( | x | + | 3 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) | = | 1 | ( | x | + | 2 | ) | − | 1 | ÷ | ( | x | + | 7 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) |
| 1 | x | + | 1 | × | 6 | − | 1 | ÷ | ( | x | + | 3 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) | = | 1 | ( | x | + | 2 | ) | − | 1 | ÷ | ( | x | + | 7 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) |
| 1 | x | + | 1 | × | 6 | − | 1 | ÷ | ( | x | + | 3 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) | = | 1 | x | + | 1 | × | 2 | − | 1 | ÷ | ( | x | + | 7 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) |
| 1 | x | + | 6 | − | 1 | ÷ | ( | x | + | 3 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) | = | 1 | x | + | 2 | − | 1 | ÷ | ( | x | + | 7 | ) | × | ( | x | + | 2 | ) | ( | x | + | 6 | ) |
| Multiply both sides of the equation by: | ( | x | + | 3 | ) | , | ( | x | + | 7 | ) |
| 1 | x | ( | x | + | 3 | ) | ( | x | + | 7 | ) | + | 6 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) | ( | x | + | 6 | ) | ( | x | + | 7 | ) | = | 1 | x | ( | x | + | 3 | ) | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) | ( | x | + | 6 | ) | ( | x | + | 3 | ) |
| 1 | x | x | ( | x | + | 7 | ) | + | 1 | x | × | 3 | ( | x | + | 7 | ) | + | 6 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | = | 1 | x | ( | x | + | 3 | ) | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) | ( | x | + | 6 | ) | ( | x | + | 3 | ) |
| 1 | x | x | ( | x | + | 7 | ) | + | 1 | x | × | 3 | ( | x | + | 7 | ) | + | 6 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | = | 1 | x | x | ( | x | + | 7 | ) | + | 1 | x | × | 3 | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 |
| 1 | x | x | ( | x | + | 7 | ) | + | 3 | x | ( | x | + | 7 | ) | + | 6 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) | = | 1 | x | x | ( | x | + | 7 | ) | + | 3 | x | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) |
| 1 | x | x | x | + | 1 | x | x | × | 7 | + | 3 | x | ( | x | + | 7 | ) | + | 6 | = | 1 | x | x | ( | x | + | 7 | ) | + | 3 | x | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) | ( | x | + | 7 | ) | − | 1 | ( | x | + | 2 | ) |
| 1 | x | x | x | + | 1 | x | x | × | 7 | + | 3 | x | ( | x | + | 7 | ) | + | 6 | = | 1 | x | x | x | + | 1 | x | x | × | 7 | + | 3 | x | ( | x | + | 7 | ) | + | 2 |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | ( | x | + | 7 | ) | + | 6 | ( | x | + | 3 | ) | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 3 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | ( | x | + | 7 | ) | + | 2 | ( | x | + | 3 | ) |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 3 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 3 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 21 | x |
| 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 63 | x | = | 1 | x | x | x | + | 7 | x | x | + | 3 | x | x | + | 35 | x |
| x1= | - | 9 2 |