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y-4 pe 5 =7 pe 3 urgenta !!!! am nevoie de ajutor...

Răspuns :

[tex] \frac{y-4}{5} = \frac{7}{3} =\ \textgreater \ y-4= \frac{7*5}{3} \\ \\~~~~~~~~~~~~=\ \textgreater \ y-4= \frac{35}{3} \\\\ ~~~~~~~~~~~=\ \textgreater \ y-4=11,66\\ ~~~~~~~~~~~=\ \textgreater \ y=11,66-4\\ ~~~~~~~~~~~=\ \textgreater \ y=7,66[/tex]