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horses4lyfeeee
The answer is 12. You got the right answer. 

I got this answer by doing PEMDAS. 

First I answered the numbers in the parentheses and the brackets. then i multiplied the numbers in the brackets by the outside number which got me to twelve. 
2[13 -- (1 + 6)]
work out the inner brackets first:
= 2[ 13 - 7]
Now the other brackets:-
= 2 * 6
= 12 answer

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