How to sum tuple elements

New to Julia
6

It doesn’t here, just copying and pasting your code:

julia
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   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.6.2 (2021-07-14)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> numbers = [1,2,3,4,5]
5-element Vector{Int64}:
 1
 2
 3
 4
 5

julia> x = collect(Iterators.product(numbers, numbers))
5×5 Matrix{Tuple{Int64, Int64}}:
 (1, 1)  (1, 2)  (1, 3)  (1, 4)  (1, 5)
 (2, 1)  (2, 2)  (2, 3)  (2, 4)  (2, 5)
 (3, 1)  (3, 2)  (3, 3)  (3, 4)  (3, 5)
 (4, 1)  (4, 2)  (4, 3)  (4, 4)  (4, 5)
 (5, 1)  (5, 2)  (5, 3)  (5, 4)  (5, 5)

julia> y = filter(t -> sum(t) == 6, x)
5-element Vector{Tuple{Int64, Int64}}:
 (5, 1)
 (4, 2)
 (3, 3)
 (2, 4)
 (1, 5)

julia>
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