Notăm numerele cu a,b,c
a+b+c=16
c=b+4
a=c-1=b+4-1=b+3
b+3+b+b+4=16
3b+7=16
3b=16-7
3b=9
b=9:3
b=3
a=b+3=3+3=6
c=b+4=3+4=7
Numerele sunt 6,7,3
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Notăm numerele cu a,b,c
a+b+c=16
c=b+4
a=c-1=b+4-1=b+3
a+b+c=16
b+3+b+b+4=16
3b+7=16
3b=16-7
3b=9
b=9:3
b=3
a=b+3=3+3=6
c=b+4=3+4=7
Numerele sunt 6,7,3