Question

x+1 supra x=6. Atunci, x- 1 supra x=?

Answer 1

$\frac{x+1}{x}=6 =\ \textgreater \ 6x=x+1=\ \textgreater \ 5x=1=\ \textgreater \ x= \frac{1}{5}=0,2 \\ \frac{x-1}{x}=? \\ \frac{0,2-1}{0,2}= \frac{-0,8}{0,2}= \frac{-8}{2}=-4$