Question

y=(x+1)/(x-1) nach x auflösen?

Answer 1

y=(x+1)/(x-1)              |(x-1)

y(x-1) = x+1

xy - y = x+1

xy-x = 1 + y

x(y-1) = 1+y

x = (1+y)/(y-1)        , wobei y≠1.