Answer: See below
Explanation:
For this problem, we can either solve for y or solve for x. Let's do both.
First, we solve for y.
 [add both sides by 1.5x]
 [add both sides by 1.5x]
 [divide both sides by 6]
 [divide both sides by 6]

Now, let's solve for x.
 [subtract both sides by 6y]
 [subtract both sides by 6y]
 [divide both sides by -1.5]
 [divide both sides by -1.5]

I don't know what you are solving, but if you were to solve for x and y, that would be your answer.