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URGENT!!!!!!!! Daca 2a + 3b/4b +15a =0. (3) , afla a/b.



Răspuns :

0,(3)=3/9=1/3

(2a+3b)/(4b+15a)=1/3

3*(2a+3b)=1* (4b+15a)

6a +9b =4b +15a

-9a= -5b

9a = 5b

a/b= 5/9