Answer: 32
Explanation:
We will use the Order of Operations. First, we will do parentheses (), then brackets [], then lastly the braces {}, then lastly add 12.
Given:
{[2+(11+9)]-2)+12
Add 11 to 9:
{[2+20]-2)+12
Add 2 to 20:
{22-2)+12
Subtract 2 from 20:
20 + 12
Add 20 and 12:
32