(2-18÷9)-(2-25)
(2 - 18 ÷ 9) - (2 - 25)
First, we simplify the division: 18 ÷ 9 = 2.
Thus, the expression becomes: (2 - 2) - (2 - 25).
We can further simplify the parentheses: 2 - 2 = 0 and 2 - 25 = -23.
The expression then becomes: 0 - (-23).
When we subtract a negative number, it becomes addition: 0 + 23.
Therefore, the final answer is 23.
To solve this problem step-by-step, follow the order of operations, which is also known as PEMDAS.
Step 1: Evaluate the division inside the parentheses.
18 ÷ 9 = 2
Step 2: Simplify the expression inside the first set of parentheses.
(2 - 2) - (2 - 25) = 0 - (-23)
Step 3: Perform the subtraction.
0 - (-23) = 0 + 23 = 23
Therefore, the final result is 23.