Answer:
x > -1/3
Explanation:
so first we are going to distribute the numbers outside of the parenthesis. which gives us the equation 
18-9x-8+12x > 9
then we are going to add our like terms 
 
so 12x + -9x gives us 3x 
and 18 + -8 gives us 10
so it would gives us the equation 3x+10>9 
we then subtract 10 from both sides to keep our numbers on the right which gives us 
3x > -1
then we divide by 3 on both sides to get X 
and we then get X > -1/3