How did we arrive at 24 as the final answer?
1. First, we remove the parenthesis by solving the problem inside.
2. Second, we follow the PMDAS rule, that is multiplication and division first
then addition and subtraction or whichever comes first.
3. After removing the parenthesis only one operation is left and that is
multiplication
4. So we multiply the difference of the number inside the parenthesis by 2
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