| ( | x | + | 11 50 | ) | ÷ | 2 | = | 2199 10000 |
| Left side of the equation = | x | × | 1 2 | + | 11 50 | × | 1 2 |
| = | x | × | 1 2 | + | 11 100 |
1 2 | x | + | 11 100 | = | 2199 10000 |
1 2 | x | = | 2199 10000 | − | 11 100 |
1 2 | x | = | 1099 10000 |
| x | = | 1099 10000 | ÷ | 1 2 |
| = | 1099 10000 | × | 2 |
| = | 1099 5000 | × | 1 |
| x | = | 1099 5000 |
| x | = | 0.2198 |