作业帮化简：-(-2/3)=( ) -(4/5)=( ) -{+[-(+3)]}=(化简：-(-2/3)=( )-(4/5)=( )-{+[-(+3)]}=( )
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化简：-(-2/3)=( ) -(4/5)=( ) -{+[-(+3)]}=(化简：-(-2/3)=( )-(4/5)=( )-{+[-(+3)]}=( )
化简：-(-2/3)=( ) -(4/5)=( ) -{+[-(+3)]}=(
化简：-(-2/3)=( )
-(4/5)=( )
-{+[-(+3)]}=( )
化简：-(-2/3)=( ) -(4/5)=( ) -{+[-(+3)]}=(化简：-(-2/3)=( )-(4/5)=( )-{+[-(+3)]}=( )
化简：-(-2/3)=( ) -(4/5)=( ) -{+[-(+3)]}=(化简：-(-2/3)=( )-(4/5)=( )-{+[-(+3)]}=( )
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