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a+b+c=96 a+b=49 b+c=46

Răspuns :

a+b+c=96

a+b=49
a=49-b

b+c=46
c=46-b

Inlocuim in prima ecuatie

49-b+b+46-b=96
95-b=96
-b=96-95
-b=1
b=-1

a=49-b=49-(-1)=49+1=50
c=46-b=46-(-1)=46+1=47

Verificare. 50+(-1)+47=50-1+47=49+47=96

Raspuns a=50, b= -1, c=47