Question

$- \frac{x}{y} + (- \frac{x}{y} )$$- \frac{4}{15} + (- \frac{4}{10} )$
Va rog !! urgeent !!!!!

Answer 1

raspunsul mai jos..........

Answer 2

-$\frac{x}{y}$+($\frac{x}{y}$)-$\frac{4}{15} +(- \frac{4}{10})$=-$\frac{2x}{y} - \frac{4}{15} - \frac{4}{10}$=$- \frac{2x}{y} - \frac{8}{30} - \frac{12}{30}$=$-\frac{x}{y} - \frac{20}{30}$=$- \frac{2x}{y} - \frac{2}{3}$=$\frac{-6x-2y}{3y}$