(a+b):2=14,5=>a+b=14,5×2=>a+b=29
(b+c):2=21,3=>b+c=21,3×2=>b+c=42,6
(c+a):2=11,5=>c+a=11,5×2=>c+a=23
a+b+b+c+c+a=29+42,6+23
2×(a+b+c)=94,6
a+b+c=94,6:2=47,3
(a+b+c):3=15,7(6)
Rezolvarea e corecta...daca am gresit la calcul sau raspuns corectezi tu! Sper ca te-am ajutat ❤.
