Răspuns :
m+p+g =80
m+p=49
p+g=64
[tex] \left \{ {{m+p+g=80} \atop {m+p=49}} \right. =\ \textgreater \ g=80-49 =31[/tex]
[tex] \left \{ {{m+p+g=80} \atop {p+g=64}} \right.=\ \textgreater \ m=80-64=16 [/tex]
p=80-31-16=33
m+p=49
p+g=64
[tex] \left \{ {{m+p+g=80} \atop {m+p=49}} \right. =\ \textgreater \ g=80-49 =31[/tex]
[tex] \left \{ {{m+p+g=80} \atop {p+g=64}} \right.=\ \textgreater \ m=80-64=16 [/tex]
p=80-31-16=33