First off we want to combine "like-terms" 1. Subtract 6x , so it will look like this: 2x-6x+12=-12 2. Subtract the -12 from the first side so it looks like 2x-6x=-12-12 3. Combine like terms. So: -3x=-24 . The negatives will cancel out when dividing 24/3.
The final answer is 8 after dividing. Hope this helped!