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Daca 3x-y/2x+3y=1/2 ,calculati raportul dintre y si x.

Răspuns :

(3x-y)/(2x+3y) = 1/2
2(3x-y) = 2x+3y
6x-2y = 2x+3y
-2y-3y = 2x-6x
-5y = -4x
5y = 4x
y = 4x/5
y/x = 4/5.



J'espère aidé :)