1. Question Restatement:
In Genesis 3, was Adam present when the serpent was talking with Eve or not?
Note: The "Blame Game" is often injected into this context - anachronistically - and without merit.
In the context - the narrative is clearly showing Eve fulfilling the role that God had set out - to stand before Adam, advocating for him - even contending with the Serpent.
3. Context and Hebrew Terms:
Verb tenses: Singular and plural verbs are intertwined in this passage - but make sense within a legal context: while representing another.
Eve's Role as An Advocate for Adam:
The Hebrew phrase, "Ezer Kenegdo", from "עזר כנגדו" - means "Helper before Him".
NASB, Genesis 2:18 - Then the Lord God said, “It is not good for the man to be alone; I will make him a helper suitable, (עזר כנגדו, Ezer Kenegdo) for him.”
Note: There is no linguistic precedent to translate "כנגדו / kenegdo" as "Suitable".
The idiom is used extensively throughout Hebrew Scripture, to invoke a "legal" sense - to imply: advocacy, accountability, championing another, etc, (Genesis 31:37, Genesis 33:12, etc) ...
Adam's Plausible Deniability:
Because Eve was Adam's "Advocate" - Adam responded properly:
NASB, Genesis 2:12 - The man said, “The woman whom You gave to be with me, she gave me from the tree, and I ate.”
Eve's Proper Defense:
Eve did not point her finger back at Adam, but rather defended him instead: "There is evil in this world ..." :
NASB, Genesis 2:13 - And the woman said, “The serpent deceived / נָשָׁא me, and I ate.”
In her argument, Eve essentially pleaded "Entrapment" - acknowledging that they did in fact transgress the commandment - but only because they were improperly lured into doing so - by an angel! ...
As a result: Eve's unconditional advocacy for Adam, standing before him - prevailed over the judgment of death.
4. Harmonizing Genesis 3, with 1 Timothy 2:14 & 1 Corinthians 11:9-10 :
Including because the original question raised the issue ...
Mankind is Vulnerable to Teaching False Wisdom:
NASB, 1 Timothy 2:14 - And it was not Adam who was deceived, but the woman [his advocate] being deceived, fell into transgression.
NASB, Ezekiel 28:17 - “Your heart was lifted up because of your beauty; You corrupted your wisdom by reason of your splendor.
NASB, Isaiah 56:11 - ... And they are shepherds who have no understanding; They have all turned to their own way, Each one to his unjust gain, to the last one.
Therefore, the Pursuit of Justice Must be Held Accountable:
NASB, 1 Corinthians 11:9-10 - for indeed man was not created for the woman’s sake, but woman for the man’s sake. 10 Therefore the woman ought to have a symbol of authority on her head - BECAUSE OF THE ANGELS.
But, what does "Because of the Angels" refer to?
The role of advocate necessarily depends on an authority for accountability - and necessary because: Even the Angels fell in this way - forsaking their role to advocate for mankind, (See Jude, Enoch 7, Genesis 6:4).
This is to ensure that those who are entrusted with advocacy - do not falsely represent and oppress others, (Regarding Accountability in Justice: Deuteronomy 16:19, Perversion of Justice: Isaiah, Jeremiah, etc, etc).
NASB, Habakkuk 1:7 - “They are dreaded and feared; Their justice AND authority originate with themselves.