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(2\5 - 3\5 + 1\9 - 1\15)• K = 5. atunci K=?

Răspuns :

Capsunica35
(2/5-3/5+1/9-1/15)*k=5
(18/45-27/45+5/45-3/45)*k=5
-7/45*k=5
-k=45*5/7
k=-225/7
k=-32,1428571428

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