Question

  1) a+b+c=7 
   2)a+b+c=4
Va rog sa imi dati toate posibilitatile ! 

Answer 1

[tex]a+b+c=7 \\ 1~~~~0~~~6 \\ 1~~~~1~~~5 \\ 1~~~~2~~~4 \\ 1~~~~3~~~3 \\ 1~~~~4~~~2 \\ 1~~~~5~~~1 \\ 1~~~~6~~~0 \\ 0~~~~0~~~7 \\ 0~~~~1~~~6 \\ 0~~~~2~~~5 \\ 0~~~~3~~~4 \\ 0~~~~4~~~3 \\ 0~~~~5~~~2 \\ 0~~~~6~~~1 \\ 2~~~~0~~~5 \\ 2~~~~1~~~4 \\ 2~~~~2~~~3 \\ 2~~~~3~~~2 \\ 2~~~~4~~~1 \\ 2~~~~5~~~0 \\ 3~~~~0~~~4 \\ 3~~~~1~~~3 \\ 3~~~~2~~~2 \\ 3~~~~4~~~0 \\ 4~~~~0~~~3 \\ 4~~~~1~~~2 \\ 4~~~~2~~~1 \\ 4~~~~3~~~0 \\ 5~~~~0~~~2 \\ 5~~~~1~~~1 \\ 5~~~~2~~~0 \\ 6~~~~0~~~1 \\ 6~~~~1~~~0 \\[/tex]
$7~~~~0~~~~0$

[tex]a+b+c=4 \\ 0~~~~0~~~4 \\ 0~~~~1~~~3 \\ 0~~~~2~~~2 \\ 0~~~~3~~~1 \\ 0~~~~4~~~0 \\ 1~~~~0~~~3 \\ 1~~~~1~~~2 \\ 1~~~~2~~~1 \\ 1~~~~3~~~0 \\ 2~~~~0~~~2 \\ 2~~~~1~~~1 \\ 2~~~~2~~~0 \\ 3~~~~0~~~1 \\ 3~~~~1~~~0 \\ 4~~~~0~~~~0[/tex]