| x | = | ( | x | + | 11 | ) | − | 3 50 | ( | x | + | 11 | ) |
| Right side of the equation = | x | + | 11 | − | 3 50 | ( | x | + | 11 | ) |
| = | x | + | 11 | − | 3 50 | x | − | 3 50 | × | 11 |
| = | x | + | 11 | − | 3 50 | x | − | 33 50 |
| = | 47 50 | x | + | 517 50 |
| x | = | 47 50 | x | + | 517 50 |
| x | − | 47 50 | x | = | 517 50 |
3 50 | x | = | 517 50 |
| x | = | 517 50 | ÷ | 3 50 |
| = | 517 50 | × | 50 3 |
| = | 517 | × | 1 3 |
| x | = | 517 3 |
| x | = | 172.333333 |