Final answer:
The difference between (2 + 8) and (-9x + 9) is 8x - 11.
Step-by-step explanation:
To find the difference when (-9x + 9) is subtracted from (2 + 8), we can simplify the expression first. (-9x + 9) can be written as (-9x + 9) * (-1) to change the sign. This gives us (-2 + 8x - 9). Now we can combine like terms and simplify further to get (8x - 11).