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Mary05
a fost răspuns

daca 2x/3y=1/2 calculeaza a)x/y=......... b)2x-y/x+y.....

Răspuns :

Iakabcristina2
a)2x/3y=1/2 =>4x=3y =>x/y=3/4

b)(2x-y)/(x+y)=(6y-4y)/(3y+4y)=2y/7y=2/7

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