Answer:
5a +2b + 9
Explanation:
The given algebraic expression can be simplified by rearranging such that the like terms are together.
3a + 4 + b + 2a + 5 + b can be rearranged as
3a + 2a + b + b + 4 + 5
= 5a +2b + 9
Hence the expression 3a + 4 + b + 2a + 5 + b when simplified is equivalent to 5a +2b + 9