[tex]7x + 11 - 9x - 18 + 6x \\ 7x - 9x + 6x + 11 - 18 \\ 4x - 7[/tex]
I hope I helped you^_^
Answer:4x-7
Explanation:You add 7x to 6x, which is 13x, then you subtract -9x from 13x, which is 4x. you add 11 to -18, which is -7. The answer is 4x-7.
