| x | ÷ | ( | x | + | 4 5 | ) | = | ( | 300 | + | x | ) | ÷ | ( | 302 | + | x | ) |
| Multiply both sides of the equation by: | ( | x | + | 4 5 | ) | , | ( | 302 | + | x | ) |
| x | ( | 302 | + | x | ) | = | ( | 300 | + | x | ) | ( | x | + | 4 5 | ) |
| x | × | 302 | + | x | x | = | ( | 300 | + | x | ) | ( | x | + | 4 5 | ) |
| x | × | 302 | + | x | x | = | 300 | ( | x | + | 4 5 | ) | + | x | ( | x | + | 4 5 | ) |
| 302 | x | + | x | x | = | 300 | x | + | 300 | × | 4 5 | + | x | ( | x | + | 4 5 | ) |
| 302 | x | + | x | x | = | 300 | x | + | 240 | + | x | ( | x | + | 4 5 | ) |
| 302 | x | + | x | x | = | 300 | x | + | 240 | + | x | x | + | x | × | 4 5 |
| 302 | x | + | x | x | = | 1504 5 | x | + | 240 | + | x | x |