Question

aflați 3 numere naturale a.b.c.stiind ca a+b=38, a+c=42,și b+c=54

Answer 1

a+b= 38
a+c = 42 => a=42-c
b+c = 54 => b=54-c

42-c+54-c = 38
42+54-38=2c
58=2c
c=29
a=42-c
a=42-29 = 13
b=54-c = 54-29 = 25