Adam lived 930 years. He and his wife surely had many children. By the time he died, there were many many many generations of children, grandchildren, etc. And they all had offspring, and lived a long time.
Adam's son Seth was born when Adam was 130 years old. Seth is the 3rd child mentioned in Scripture, but surely he wasn't the 3rd ever born to Adam and Eve. It follows that perhaps Cain wasn't the 2nd. By the time Cain was born, there may have been many generations of offspring, and therefore other cities and towns in the area....
So the Bible left that part out.
My point is that it left the technical details of the creation of life, I.E. Evolution out as well.
Genesis is the Readers Digest version of creation.
Now do you see how most people can accept the ToE as not incompatible with what words there are in Genesis?