2 -(5-6)

To evaluate the expression \(2 - (5 - 6)\), start by simplifying the parentheses:

1. Calculate \(5 - 6\): \[ 5 - 6 = -1 \]

2. Now substitute that back into the expression: \[ 2 - (-1) \]

3. Subtracting a negative is the same as adding a positive: \[ 2 + 1 = 3 \]

So, \(2 - (5 - 6) = 3\).