Which values or value are the expressions 15k + 9 and 3 (2k + 3) + 9k equivalent to?

So im going to factor each expressions

15k + 9 are both divisible by 3 so it is the same as

3 (5k+3) (distribute the 3 and you get your original equation)

3 (2k+3) + 9k

6k+9+9k

15K+9 and do the same thing above