| ( | - | 21 | x | + | 1757 | ) | ÷ | ( | 19 | x | − | 1349 | ) | = | 0 |
| Multiply both sides of the equation by: | ( | 19 | x | − | 1349 | ) |
| ( | - | 21 | x | + | 1757 | ) | = | 0 |
| - | 21 | x | + | 1757 | = | 0 |
| - | 21 | x | = | 0 | − | 1757 |
| - | 21 | x | = | - | 1757 |
| 1757 | = | 21 | x |
| 21 | x | = | 1757 |
| x | = | 1757 | ÷ | 21 |
| = | 1757 | × | 1 21 |
| = | 251 | × | 1 3 |
| x | = | 251 3 |
| x | = | 83.666667 |