To solve equations with variables on both sides you have to "move" one of the variables to the other side. Which will look like this:
Example: 2x + 8 = 4x +2
-2x -2x
8 = 2x + 2
Now all we do is solve normally.
Example: 8 = 2x + 2
-2 -2
6 = 2x
2 2
3 = x
Now I recommend that you check your answer simply by substituting x for 3.
2(3) + 8 = 4(3) + 2
14 = 14
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There you go. The basic steps for doing this is:
1. Move one of the variables to the other side
2. Two step equation solving
3. Substitute (Optional)
