Răspuns :
a+c=79,a=79-c
b+c=97,b=97-c
inlocuiesti in a+b=90,79-c+97-c=90
-2c+176=90
-2c=-86
c=86 supra 2=43
a+43=79
a=79-43=36
a+b=90
36+b=90
b=90-36=54
b+c=97,b=97-c
inlocuiesti in a+b=90,79-c+97-c=90
-2c+176=90
-2c=-86
c=86 supra 2=43
a+43=79
a=79-43=36
a+b=90
36+b=90
b=90-36=54
c=43;
b=36;
a=61;
aduni rel si obtii a+b+c=266/2
scazi pe rand cate o rel
b=36;
a=61;
aduni rel si obtii a+b+c=266/2
scazi pe rand cate o rel