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61ab-438a=1a89
va rog ( dau coroana urgent)!!!!


Răspuns :

61ba - 438a = a * 89

61ba - 438a = 89a

61ba - 527a = 0

61ba - 438a - 89a = 89a - 89a

61ab - 438a = 1a * 89

61ba - 438a = a * 89

a(61b - 527) = 0

a(61b - 527) = 0

a = 0 / 61b - 527.