Question

Va rog foarte mult f g si h

Answer 1

Sper ca se intelege scrisul

Answer 2

$\frac{2x + y}{x + 2y} = \frac{13}{17} \\ 17(2x + y) = 13(x + 2y) \\ 34x + 17y = 13x + 26y \\ 34x - 13x = 26y - 17y \\ 21x = 9y \\ \frac{x}{y} = \frac{9}{21}$
$\frac{2x - y}{x + y } = \frac{11}{16} \\ 16(2x - y) = 11( x + y) \\ 32x - 16y = 11x + 11y \\ 32x - 11x = 11y + 16 \\ 21x = 27y \\ \frac{x}{y} = \frac{27}{21}$

$\frac{x}{3x + 8y} = \frac{1}{9} \\ 9x = 3x + 8y \\ 9x - 3x = 8y \\ 6x = 8y \\ \frac{x}{y} = \frac{8}{6}$