Question

afla numerele a b c stiind ca: a+b+c=55 b+c=38 b+b+b=39

Answer 1

b=39:3=13
c=38-13=26
a=55-13-26=16

Answer 2

a+b+c=55
b+c=38;
⇒a=[a+b+c]-[b+c]
⇒a=55-38⇒a=17;
⇒3b=39⇒b=13;
⇒c=[b+c]-b
⇒c=38-13⇒c=25;