2(3+8)-9/6

Let's solve the expression step by step.

1. Start with the parentheses: \(3 + 8 = 11\)

2. Now, substitute this into the expression: \(2(11) - 9/6\)

3. Then, multiply: \(2 \times 11 = 22\)

4. Now, we rewrite the expression: \(22 - 9/6\)

5. Next, divide \(9\) by \(6\): \(9/6 = 1.5\)

6. Now we subtract: \(22 - 1.5 = 20.5\)

So, the final answer is: \[ 20.5 \]