Question 1131867
{{{f(g(x))=2(x/2+4)-8}}}
{{{x+8-8}}}
{{{x}}}



{{{g(f(x))=(2x-8)/2-4=x-4+4}}}
{{{x}}}



{{{f(g(x))=g(f(x))=x}}}


f and g are inverses of each other.