1.666666666666667 to be exact, but rounded it is 1.66
-x - 9

You want to get x by itself.
First subtract 9 from both sides of the equation.
-x - 9

+9 +9
-x

Then divide -1 on both sides.
-x/-1

I'm pretty sure when you divide a negative number when solving inequalities, you switch the sign.
x
Well, (m^2-7m-11) ÷ (m-8) = m+1 with a remainder of -3
So you would multiply if it has the word of in the problem right?