Respostas

2013-05-22T23:25:24-03:00

[ 2 - (- 20/22) ] . ( - 11/4 )

[ 2 - ( - 10/11) ] . ( - 11/4 )

[ 2 + 10/11 ] . ( - 11/4 )

[ 22/11 + 10/11] .  ( - 11/4)

[ 32/11 ] . ( -11/4)

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