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Afla n-ul:
54:n+67×5=344
n:3×8=616
894-n:4=833


Răspuns :

54:n+335=344
54:n=344-335
54:n=9=>n=6

n:3x8=616
n:3=616:8=>n:3=77=>n=231

894-n:4=833
894-833=n:4
61=n:4=>n=61x4=>n=244