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daca
[tex] \frac{a}{7} = \frac{5}{3} [/tex]
determină
[tex] \frac{5}{a + 5} [/tex]


Răspuns :

Răspuns:

[tex]\frac{a}{7} =\frac{5}{3} = > a=\frac{35}{3} \\\\\frac{5}{a+5} =\frac{5}{\frac{35}{3} +5} =\frac{5}{1} *\frac{3}{50} =\frac{3}{10}[/tex]