Solve the Expression: 18-2-5+9 Using Order of Operations

To solve the expression $18-2-5+9$, we follow the order of operations. Since there are only addition and subtraction operations, we can solve from left to right:

$18-2$ gives us $16$.

Then, $16-5$ gives us $11$.

Finally, $11+9$ gives us $20$.

So, the correct answer is $20$.