Răspuns :
1.7 primu nr
2.7×2+4=18al doilea nr
3.18+7=25 al treilea nr
suma.25+25=50
2.7×2+4=18al doilea nr
3.18+7=25 al treilea nr
suma.25+25=50
a = 7
b = 7 x 2 + 4 = 18
c = 7 + 18 = 25
a + b + c = 7 + 18 + 25 = 50
b = 7 x 2 + 4 = 18
c = 7 + 18 = 25
a + b + c = 7 + 18 + 25 = 50