So, this is a simple case of combining like terms. For now, ignore everything that doesn't have an "h"- the 1. Now, we have 5h+h-4h-2h. After that, we just move everything with a similar sign close to each other- but that's already done. Here, you can just add them all together like normal numbers, but remember that they don't get separated form the 'h". If it helps, drop the "h" and just add these numbers, then put it back on the end of your result.
You should end up with: 5h+h = 6h -4h-2h = -6h And then, 6h-6h =0h, or 0. Remember that constant we took out earlier? Add that to your answer now, resulting in a final answer of "1".
