Question

Double a number decreased by 4

Answer 1

Well, if you are doubling a number with a product that can be decreased by 4 to go back to your original number, the answer to your question is 8.

Explanation:

(4)(2 : double) = 8

8 - 4 = 4 (original number)

Answer 2

2x-5 if u want u can substitute any other variables and constant