Question 765272
Try composing one with the other.


{{{f(g(x))=7((x+7)/3)-3=(7/3)(x+7)-7*3=(7x+49)/3-21=(7x+49)/3-3*21/3}}}
={{{(7x+49-63)/3=(7x-14)/3}}}


We expect the composition of the two functions to be equal to x, but this equality does not occur here.  f(x) and g(x) are NOT inverses.