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Daca a+b=36
b+c=57
a=c=51
Calculati:c-a-b=?

Repede va rog.....e urgent...


Răspuns :

Daca b+c=57 si a=c=51 aflati c-a-b
b=6
c=51
a=51
c-a-b= 51-51-6=-6