Answer:
see the procedure
Step-by-step explanation:
we have
[tex]f(x)=x+5[/tex]
step 1
Let
y=f(x)
[tex]y=x+5[/tex]
step 2
Exchange the variables
x for y and y for x
[tex]x=y+5[/tex]
step 3
Isolate the variable y
[tex]y=x-5[/tex]
step 4
Let
[tex]f^{-1}(x)=y[/tex]
[tex]f^{-1}(x)=x-5[/tex]