| 8400 | ÷ | ( | x | + | 52 | ) | + | 10000 | ÷ | ( | x | + | 52 | ) | + | 7500 | ÷ | x | = | 150 |
| Multiply both sides of the equation by: | ( | x | + | 52 | ) |
| 8400 | + | 10000 | + | 7500 | ÷ | x | × | ( | x | + | 52 | ) | = | 150 | ( | x | + | 52 | ) |
| 8400 | + | 10000 | + | 7500 | ÷ | x | × | x | + | 7500 | ÷ | x | × | 52 | = | 150 | ( | x | + | 52 | ) |
| 8400 | + | 10000 | + | 7500 | ÷ | x | × | x | + | 7500 | ÷ | x | × | 52 | = | 150 | x | + | 150 | × | 52 |
| 8400 | + | 10000 | + | 7500 | ÷ | x | × | x | + | 390000 | ÷ | x | = | 150 | x | + | 7800 |
| 18400 | + | 7500 | ÷ | x | × | x | + | 390000 | ÷ | x | = | 150 | x | + | 7800 |
| Multiply both sides of the equation by: | x |
| 18400 | x | + | 7500 | ÷ | 1 | × | 1 | x | + | 390000 | = | 150 | x | x | + | 7800 | x |