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Cum rezolv problema asta?​

Cum Rezolv Problema Asta class=

Răspuns :

[tex]\frac{x+y}{y}=7=>x+y=7y=>x=7y-y=>x=6y\\ \\\frac{y}{x}=\frac{y}{6y}=\frac{1}{6}[/tex]