A+b=60 b+c=51 c+a=39 b=( )A+b=60 b+c=51 c+a=39 b=( ) a=( ) c=( )
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A+b=60 b+c=51 c+a=39 b=( )A+b=60 b+c=51 c+a=39 b=( ) a=( ) c=( )
A+b=60 b+c=51 c+a=39 b=( )
A+b=60 b+c=51 c+a=39 b=( ) a=( ) c=( )
A+b=60 b+c=51 c+a=39 b=( )A+b=60 b+c=51 c+a=39 b=( ) a=( ) c=( )
a=24,b=36,c=15