For this equation, all you would be able to do is evaluate it.
First, let's identify the like terms.
8g + 2 + 4g - 2 - 2g
Like terms:
8g, 4g, and 2g
2 and 2
Now, all you would need to do is combine them.
10g + 0
8g + 2 + 4g - 2 - 2g = 10g
The answer should be 10g.
I hope this helps!