(-2 ,-15)
(-1, -7)
(0,1)
(1, -7)
(2, - 15)
Answer:

Step-by-step explanation:
Factor
out of 
8x+4 would be the answer if you combine like terms
Answer: There are 20 socks in the first case and there are 75 socks in the second case.
Step-by-step explanation:
Since we have given that
Number of equal groups = 5
Let the total number of socks be 's'.
According to question, expression will be
Now, Suppose number of socks in each group = 4
So, it will become,
Suppose number of socks in each group = 15
So, Total number of socks become
Hence, there are 20 socks in the first case and there are 75 socks in the second case.