| ( | 67229 50 | + | 4 | x | ) | ÷ | ( | 291 | + | x | ) | = | 4 |
| Multiply both sides of the equation by: | ( | 291 | + | x | ) |
| ( | 67229 50 | + | 4 | x | ) | = | 4 | ( | 291 | + | x | ) |
67229 50 | + | 4 | x | = | 4 | ( | 291 | + | x | ) |
67229 50 | + | 4 | x | = | 4 | × | 291 | + | 4 | x |
67229 50 | + | 4 | x | = | 1164 | + | 4 | x |
| 4 | x | − | 4 | x | = | 1164 | − | 67229 50 |
| 0 | x | = | 1164 | − | 67229 50 |
| 0 | x | = | - | 9029 50 |