math- precalculus

Help please! I can't seem to get x as the answer to prove that they are inverses of each other!

Show what f and g are inverse functions algebraically
f(x)= x-1/x+5 g(x)= -5x+1/x-1

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asked by Sara
  1. Your nonuse of grouping symbols may be the issue.

    f(x)=(x-1)/(x+5)

    well, f(x)=(x-1)/(x+5)
    (x+5)f=x-1
    fx+5f=x-1
    x(f-1)=-5f-1
    g(x-1)=-5x-1
    g= (-5x-1)/(x-1)

    so this is the inverse, perhaps you cant get it because your g(x) is not the inverse.

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