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Daca : x supra y = 2 supra 3,atunci 6x + y supra 9x + 3y

Răspuns :

19999991
[tex] \frac{x}{y} = \frac{2}{3} [/tex]

[tex]3x = 2y[/tex]

[tex]x = \frac{2y}{3} [/tex]

[tex] \frac{6x + y}{9x + 3y} = \frac{6 \times \frac{2y}{3} + y}{9 \times \frac{2y}{3} + 3y} = \frac{4y + y}{6y + 3y} = \frac{5y}{9y} = \frac{5}{9} [/tex]