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x/y=2/0,5. 3x+2y/4x+3y=
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Răspuns :

x/y=2/0,5

x/y=4

x=4y

3x+2y/4x+3y=3×4y+2y/4×4y+3y=12y+2y/16y+3y=14y/19y=14/19

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