Răspuns :
x+y+2z=80+88=168
x+y+z=168÷2=84 nu stiu daca am facut bine ca nu vad cei cu ÷56,si ce ceri
x+y+z=168÷2=84 nu stiu daca am facut bine ca nu vad cei cu ÷56,si ce ceri
x+y=56
y+z=88
x+z=80
insumate rezulta x+y+y+z+x+z = 56+88+80
2(x+y+z)=224
x+y+z=112
56+z=112 => z=56
x+88=112 => x=24
y+80=112 => y=32
y+z=88
x+z=80
insumate rezulta x+y+y+z+x+z = 56+88+80
2(x+y+z)=224
x+y+z=112
56+z=112 => z=56
x+88=112 => x=24
y+80=112 => y=32