Sum array from input haskell using Num a => a [closed]

i have problem with haskell when i learn about sum every index in array,

acc :: (Num a) => a -> [t] -> [t]
acc _ [] = []
acc z (x:xs) = [(z) x] ++ (acc z xs)

my question is how to sum index from input user, input : acc (+10) [1,2,3] result : [11,12,13]

Solution 1:

Resolved with:

acc :: (a -> b) -> [a] -> [b]
acc _ [] = []
acc a (x:xs) = [a x] ++ (acc a xs)