Question

Use algebra to find the inverse of the given one-to-one function.
f(x)=x/x+15

Answer 1

same concept.
let f(x)=y
y(x+15)=x
yx+15y=x
yx-x=-15y
x(y-1)=-15y
x=-15y/(y-1)
replace y with x

Answer 2

THANKS