“Now the serpent was more subtil than any beast of the field which the Lord God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of every tree of the garden?” Genesis 3:1
The short answer is that the instructions God gave Adam, with respect to eating of the tree of good and evil, He gave to Adam directly. Eve was not told this directly, she learned from Adam. Satan as the serpent operating through Eve because Adam had direct knowledge from God in this matter.
“And the Lord God took the man, and put him into the garden of Eden to dress it and to keep it. And the Lord God commanded the man, saying, Of every tree of the garden thou mayest freely eat: But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.” Genesis 2:15–17
In Genesis 3, we see that Adam was WITH Eve during the encounter with the serpent, which suggest Adam heard the entire exchange. That being the case, his participation in this, was deliberate and disobedient.
“And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat.” Genesis 3:6
As it is written, Adam was NOT deceived which is why man was and is condemned.
“And Adam was not deceived, but the woman being deceived was in the transgression.” 1 Timothy 2:14
This understanding helps to explain the emphasis on “Adam’s sin” in the New Testament. “Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:” Romans 5:12
Adam was created first and placed in the Garden of Eden to care for it along with Eve. Adam then actively participated in breaking the one prohibition God had given him. If Adam had not been present when Eve spoke with the serpent, it would be more difficult to understand why the first sin is emphasized as being Adam’s.
Another view is that the phrase “unto her husband with her” simply means that Adam was with Eve when she offered him the fruit. In other words, Eve heard the serpent’s lies, believed they were the truth, and ate the fruit. Then she found her husband, and once she had him “with her,” she gave him the fruit, too.
This understanding would explain why Adam did not intervene in the serpent’s deception of Eve and why the New Testament insists that Eve was “deceived” but Adam was not (1 Timothy 2:14). The fact that death came through Adam’s sin instead of Eve’s is explained by the idea that the federal headship of mankind was vested in Adam, as the one first created (1 Timothy 2:13).
There is a third view, that Adam was in the vicinity of the tree while Eve was being tempted. He was near enough to still be considered “with” his wife, yet far enough away not to hear the conversation.
Either way, the serpent was served by approaching Eve and allowing Eve to introduce the sin to Adam who was predisposed to wanting to please Eve.
“And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;” Genesis 3:17
As to you equation about the serpent attacking Adam verbally, I have no idea where that is as a biblical account.