| ( | x | − | 9 | ) | ÷ | ( | 51 5 | − | 19 2 | ) | = | ( | 8 | − | 7 | ) | ÷ | ( | 12 | − | 11 | ) |
| Multiply both sides of the equation by: | ( | 51 5 | − | 19 2 | ) | , | ( | 12 | − | 11 | ) |
| ( | x | − | 9 | ) | ( | 12 | − | 11 | ) | = | ( | 8 | − | 7 | ) | ( | 51 5 | − | 19 2 | ) |
| x | ( | 12 | − | 11 | ) | − | 9 | ( | 12 | − | 11 | ) | = | ( | 8 | − | 7 | ) | ( | 51 5 | − | 19 2 | ) |
| x | ( | 12 | − | 11 | ) | − | 9 | ( | 12 | − | 11 | ) | = | 8 | ( | 51 5 | − | 19 2 | ) | − | 7 | ( | 51 5 | − | 19 2 | ) |
| x | × | 12 | − | x | × | 11 | − | 9 | ( | 12 | − | 11 | ) | = | 8 | ( | 51 5 | − | 19 2 | ) | − | 7 | ( | 51 5 | − | 19 2 | ) |
| x | × | 12 | − | x | × | 11 | − | 9 | ( | 12 | − | 11 | ) | = | 8 | × | 51 5 | − | 8 | × | 19 2 | − | 7 | ( | 51 5 | − | 19 2 | ) |
| x | × | 12 | − | x | × | 11 | − | 9 | ( | 12 | − | 11 | ) | = | 408 5 | − | 76 | − | 7 | ( | 51 5 | − | 19 2 | ) |
| 1 | x | − | 9 | ( | 12 | − | 11 | ) | = | 28 5 | − | 7 | ( | 51 5 | − | 19 2 | ) |
| 1 | x | − | 9 | × | 12 | + | 9 | × | 11 | = | 28 5 | − | 7 | ( | 51 5 | − | 19 2 | ) |
| 1 | x | − | 9 | × | 12 | + | 9 | × | 11 | = | 28 5 | − | 7 | × | 51 5 | + | 7 | × | 19 2 |
| 1 | x | − | 108 | + | 99 | = | 28 5 | − | 357 5 | + | 133 2 |
| 1 | x | − | 9 | = | 7 10 |
| 1 | x | = | 7 10 | + | 9 |
| x | = | 7 10 | + | 9 |
| x | = | 97 10 |