Respuesta :

klee48
Add like terms together.
3x+9y+2x
5x+9y
[tex]3x+9y+2x \\ \\ (3x + 2x) + 9y \ / \ gather \ the \ like \ terms \\ \\ 5x + 9y \ / \ simplify \\ \\ [/tex]

So, your answer to this problem is 5x + 9y.