OK. We could have gotten along nicely without the comment.
-5v - 6 = 3v + 10
I think what you're trying to find is the number that ' v ' must be
in order to make the equation a true statement. That number
is called the 'solution' of the equation.
To find it, you have to massage and manipulate the equation around
until you have ' v ' and nothing else on one side. You can do anything
you want to a whole side of the equation, but whatever you do to one
side, you must immediately do to the other side. Here's one way you
could go about it:
-5v - 6 = 3v + 10
Add 5v to each side: -6 = 8v + 10
Subtract 10 from each side: -16 = 8v
Divide each side by 8 : -2 = v
Now, was that so painful ?