| 10000 | ÷ | x | + | 20000 | ÷ | ( | x | + | 60 | ) | = | 0 |
| Multiply both sides of the equation by: | x |
| 10000 | + | 20000 | ÷ | ( | x | + | 60 | ) | × | x | = | 0 |
| Multiply both sides of the equation by: | ( | x | + | 60 | ) |
| 10000 | ( | x | + | 60 | ) | + | 20000 | x | = | 0 |
| 10000 | x | + | 10000 | × | 60 | + | 20000 | x | = | 0 |
| 10000 | x | + | 600000 | + | 20000 | x | = | 0 |
| 30000 | x | + | 600000 | = | 0 |
| 30000 | x | = | 0 | − | 600000 |
| 30000 | x | = | - | 600000 |
| x | = | - | 600000 | ÷ | 30000 |
| = | - | 600000 | × | 1 30000 |
| = | - | 20 | × | 1 |
| x | = | - | 20 |