Question

X 1supra x =6 atunci x-1 supra x =...?

Answer 1

$\frac{x+1}{x}=6 \\ x+1=6x\\5x=1\\x= \frac{1}{5} \\ \\x-1= \frac{1}{5}-1=- \frac{4}{5} \\ \frac{ -\frac{4}{5} }{ \frac{1}{5} } =-4$