Question

Aflati numerele a, b, c, stiind ca a+b=c; a-b=b si b+c= 32

Answer 1

b+c=32 => b = 32 - c
a-b =c => a - 32 - c = 32 - c = > a + c - c = 32 + 32 => a+c-c=64 =>a = 62 - c + c
a+b=c => 62-c+c + 32-c = c => 62-c+32-c=c => 62 + c + 32 = c => 62+32 = c => c= 94

c=94 => b+c=32 => b+94=32 => b=32-94 => b=-62
b= -62 => a-b=b => a-(-62)=-62 => a+62=-62 => a =-62-62 => a= -124

a= -124
b= -62
c = 94