| x | − | 11 | = | 1 | ÷ | 2 | × | ( | 200 | − | x | ) |
| Right side of the equation = | 1 2 | ( | 200 | − | x | ) |
| x | − | 11 | = | 1 2 | ( | 200 | − | x | ) |
| Right side of the equation = | 1 2 | × | 200 | − | 1 2 | x |
| = | 100 | − | 1 2 | x |
| x | − | 11 | = | 100 | − | 1 2 | x |
| x | + | 1 2 | x | = | 100 | + | 11 |
3 2 | x | = | 100 | + | 11 |
3 2 | x | = | 111 |
| x | = | 111 | ÷ | 3 2 |
| = | 111 | × | 2 3 |
| = | 37 | × | 2 |
| x | = | 74 |