| 2 | ( | 9 | + | 5 | + | 10 | + | 16 | ) | ÷ | ( | 105 | + | 129 | + | 9 | + | 5 | + | 10 | + | 16 | ) | = | x |
| Multiply both sides of the equation by: | ( | 105 | + | 129 | + | 9 | + | 5 | + | 10 | + | 16 | ) |
| 2 | ( | 9 | + | 5 | + | 10 | + | 16 | ) | = | x | ( | 105 | + | 129 | + | 9 | + | 5 | + | 10 | + | 16 | ) |
| 2 | × | 9 | + | 2 | × | 5 | + | 2 | × | 10 | + | 2 | × | 16 | = | x | ( | 105 | + | 129 | + | 9 | + | 5 | + | 10 | + | 16 | ) |
| 2 | × | 9 | + | 2 | × | 5 | + | 2 | × | 10 | + | 2 | × | 16 | = | x | × | 105 | + | x | × | 129 | + | x | × | 9 | + | x | × | 5 | + | x | × | 10 | + | x | × | 16 |
| 18 | + | 10 | + | 20 | + | 32 | = | x | × | 105 | + | x | × | 129 | + | x | × | 9 | + | x | × | 5 | + | x | × | 10 | + | x | × | 16 |
| 80 | = | 274 | x |
| - | 274 | x | = | - | 80 |
| 80 | = | 274 | x |
| 274 | x | = | 80 |
| x | = | 80 | ÷ | 274 |
| = | 80 | × | 1 274 |
| = | 40 | × | 1 137 |
| x | = | 40 137 |
| x | = | 0.291971 |