Final answer:
The mathematical expressions and their simplified forms are provided.
Step-by-step explanation:
The mathematical expressions and their simplified forms are as follows:
(7+5) = 12
(2 +9+4) = 15
3 = 3
(3+1+4+8) = 16
4 = 4
6 = 6
5 = 5
So, the matches are:
(7+5) -> 12
(2 +9+4) -> 15
3 -> 3
(3+1+4+8) -> 16
4 -> 4
6 -> 6
5 -> 5
Learn more about Mathematical expressions and their simplification