Answer:
3x+7
Step-by-step explanation:
Let's simplify step-by-step.
4+2x+3+1x
=4+2x+3+x
Combine Like Terms:
=(2x+x)+(4+3)
=3x+7
2
your question is not clear
12 Pairs
4 pairs = 8
2 pairs = 4
8 + 4 = 12
If you need total socks, there's 24 total