Let y = 5 x + 6 ( using y for f(x))
then 5x + 6 = y
5x = y - 6
x = 1/5 (y - 6) We can now find x from y or f (x)
So the inverse function is g (x) = 1/5 (x -6)
check f (2) = 10 +6 = 16
and g(16) =1/5 (16 -6) = 2
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