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Stiind ca:
a×b-a×c=1440si a=45,calculati b-c


Va rog frumos


Răspuns :

ab-ac=a(b-c)=1440=>b-c=1440/a=1440/45=32
45*b-45*c=1440
45(b-c)=1440
b-c=1440\45
b-c=32