Answer:
16y+7z
Step-by-step explanation:
combine like terms, so 9y+7y, and 11z-4z
16y + 7z
The only thing you need to do is combine like terms.
9y + 11z + 7y - 4z
Add 9 + 7 together.
16y + 11z - 4z
Subtract 4 from 11.
Hope this helps.
