Question

Stiind ca x supra y = 1 supra 3 , calculati x + 2y TOTUL SUPRA y - 2x .

Answer 1

$\frac{x}{y} = \frac{1}{3} \ \textless \ =\ \textgreater \ 3x=y \ \textless \ =\ \textgreater \ \frac{x+2(3x)}{3x-2x}= \frac{7x}{x} =7$