Question

Fie.a+b+c=55
b+c=38
b+b+b=39

Sa se afle cele trei numere.

Answer 1

a+b+c=55b+c=38 => c=38-b
b+b+b=39 => 3b=39 => b=39/3 => b=13

c=38-b => c=38-13 => c=25

a+38=55 => a=55-38 => a=17

Answer 2

a+b+c=55 inlocuim b+c=38 => a+38=55 de unde a=17
    b+c=38 inlocuim b si avem : c+13=38 => c=25
    3b=39 =>b=13

a=17  b=13  c=25