Răspuns :
a+b+c=346
b=13+2a
c=13+2b
c=13+2(13+2a)
c=13+26+4a
c=39+4a
a+13+2a+39+4a=346
7a+52=346
7a=294
a=42
b=13+2*42=13+84=97
c=39+4*42=39+168=207
b=13+2a
c=13+2b
c=13+2(13+2a)
c=13+26+4a
c=39+4a
a+13+2a+39+4a=346
7a+52=346
7a=294
a=42
b=13+2*42=13+84=97
c=39+4*42=39+168=207
a+b+c=346b=13+2ac=13+2bc=13+2(13+2a)c=13+26+4ac=39+4aa+13+2a+39+4a=3467a+52=3467a=294a=42b=13+2*42=13+84=97c=39+4*42=39+168=207