Answer:
[tex]f(x) = \frac{x+5}{2} - 3[/tex]
Step-by-step explanation
Let the unknown number be x
If the function adds 5 to the number, then;
f(x) = x + 5
If it is divide by 2;
f(x) = x+5/2
If it is then subtracted from 3;
[tex]f(x) = \frac{x+5}{2} - 3[/tex]
Hence the required function will be [tex]f(x) = \frac{x+5}{2} - 3[/tex]
