Question

-13-[-7-{3-4(6÷3-1)}]​

Answer 1

-13-[-7-{3-4(6÷3-1)}

-13-[-7-{-1(2-1)}]

-13-[-7-(-1×1)]

-13-[-7-(-1)]

-13-(-7+1)

-13-(-6)

-13+6

7

so the answer is "7 "

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