I want to use lambda in python to create a function that receives functions and returns functions.

There is a function add_functions(f,g) using Python lambda and
I want the return value to be f(x)+g(x).For example,

f=add_functions (lambdax:x*2, lambdax:x+1)

If you run f(2), the results are as follows:

f(2)#returns(2*2)+(2+1)=7

How do I write the contents of this add_functions function?
I would appreciate it if you could let me know.

The hint reads as follows:

You can directly return a lambda