Question

Help Please !!!! For the following exercises, find the f^-1(x) for each function.


f(x)= x/x+2
I solved it like this : Am i correct?
y= x /x+2
x=y/y+2
(y+2) (x) = y
xy+2x= y
- xy -xy
2x=y-xy
2x/1-x= y(1-x)/1-x
Final answer : 2x/1-x= y
But my solotuion book says the answer
is -2x/1-x= y


Is the answer 2x/1*x

Answer 1

O.O

Answer 2

]yeah think your correct unless dan says otherwise ^.^