Question

resuelva la operacion indicada { [3+2-(9-7)+(3+1) ] } y de -[ 3+4+ [4+7]+4-9]

Answer 1

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Answer 2

{ [3+2-(9-7)+(3+1) ] }
{ [3+2-(2)+4]}
{ 5-2+4}
{ 3+4}
=7

-[ 3+4+ [4+7]+4-9]
-[ 3+4+11+4-9]
-[22-9]
-[13]
= -13