Divide! If you add three and four, you get seven. Subtracting four from seven, you get three. If you multiply three and four, you get twelve. If you then divide by four, you get back to 3. I hope this helped!
Answer:
![14z](https://tex.z-dn.net/?f=14z)
Step-by-step explanation:
Since these are like-terms, they can be added together.
7z + 7z = 14z
Not sure:((((((( sorrryyyy