Answer:
FALSE
Step-by-step explanation:
We don't know in which context or in which language this is, but that shouldn't impact the answer because the signification of this is almost universal.
So, let's analyse this expression from the inside out.
Let's start with the parenthesis:
(12+12=24) = (24=24) = TRUE
Then let's replace the parenthesis by it boolean value:
NOT(TRUE) = FALSE
The output of the formula =NOT(12+12=24) is FALSE.