Question 255039
Hello, 
Let's write it out as:
-2x = 1/9  Now divide both sides by -2
x=-1/9/2  This looks pretty strange but it can be rewritten as:
x=-1/9 * 1/2 which will be 
x=-1/18
This answer can be plugged into the original and it fits!
RJ 
Check out a new math book at:
www.math-unlock.com