Answer:
8+7d
Step-by-step explanation:
So forest you combine like terms
4+4=8
There are no longer any like terms so your finished product is 8+7d
I believe the answer is C
I think if I do this correctly, the answer is x<-1
Any value? you could use 0 or 1 or 2. All three of these are a group of many that would wokr. Any would work!