| ( | 271 | + | x | ) | × | 43 10 | ÷ | ( | ( | 271 | + | x | ) | + | 17 | ) | = | 21 5 |
| Multiply both sides of the equation by: | ( | ( | 271 | + | x | ) | + | 17 | ) |
| ( | 271 | + | x | ) | × | 43 10 | = | 21 5 | ( | ( | 271 | + | x | ) | + | 17 | ) |
| 271 | × | 43 10 | + | x | × | 43 10 | = | 21 5 | ( | ( | 271 | + | x | ) | + | 17 | ) |
| 271 | × | 43 10 | + | x | × | 43 10 | = | 21 5 | ( | 271 | + | x | ) | + | 21 5 | × | 17 |
11653 10 | + | x | × | 43 10 | = | 21 5 | ( | 271 | + | x | ) | + | 357 5 |
11653 10 | + | 43 10 | x | = | 21 5 | × | 271 | + | 21 5 | x | + | 357 5 |
11653 10 | + | 43 10 | x | = | 5691 5 | + | 21 5 | x | + | 357 5 |
11653 10 | + | 43 10 | x | = | 6048 5 | + | 21 5 | x |
43 10 | x | − | 21 5 | x | = | 6048 5 | − | 11653 10 |
1 10 | x | = | 6048 5 | − | 11653 10 |
1 10 | x | = | 443 10 |
| x | = | 443 10 | ÷ | 1 10 |
| = | 443 10 | × | 10 |
| = | 443 | × | 1 |
| x | = | 443 |