Okay, so you need to know how to make an attack it seems. At least that's what I think you want to know.
To do a usual melee attack, roll the D20. Add the attack modifier (Your proficiency bonus + your strength modifier (It's your dexterity modifier for ranged and finesse weapons)) If the total is greater or equal to the target's armor class, you hit. Then, you roll your damage dice, which is a different dice depending on the weapon you are using, and add your strength modifier to the damage. (It's instead your dexterity modifier added to the damage if you are using finesse or ranged weapons.)
And now, that's how you attack with a weapon in D&D! :D You can ask any question to me you want!
When you do the AC of a creature, does it apply the raw damage as the number you must compare or the d20 roll with the modifier?
I find it difficult to figure out what you're even asking, starting with the meaning of "do the AC." You have a bunch of words arranged in a way that technically forms a sentence, but those words don't make sense in the context in which I assume you're asking a question (something to do with D&D).
Armor Class has absolutely nothing to do with the amount of damage dealt by an attack. AC is used, along with attack rolls, to see if an attack hits or misses. Damage rolls are separate things and neither the target's AC nor the attacker's attack roll are used in them. Damage is different depending on the attack, what weapon, spell, or other effect is causing the damage, but in combat it is usually whatever damage die/dice is the base for the weapon or spell being used to make the attack plus any appropriate modifiers (applicable ability modifier of the attacker, bonuses from feats or class abilities, reduction from resistance, etc).
As mentioned by others above, I suggest you actually read the combat rules which can be found in the Players Handbook or online for free at the link pangurjan helpfully listed in the post immediately above this one. The only reasons I can come up with for you even asking your question in the way you did are that you either do not know how the rules work at all or you're too drunk/stoned to make sense of anything, and the lack of typos and misspellings indicates the latter to be unlikely.
When you do the AC of a creature, does it apply the raw damage as the number you must compare or the d20 roll with the modifier?
If you do not know the core rules of this game litterally just go read the Players hand book or dungeon masters guide
Okay, so you need to know how to make an attack it seems. At least that's what I think you want to know.
To do a usual melee attack, roll the D20. Add the attack modifier (Your proficiency bonus + your strength modifier (It's your dexterity modifier for ranged and finesse weapons)) If the total is greater or equal to the target's armor class, you hit. Then, you roll your damage dice, which is a different dice depending on the weapon you are using, and add your strength modifier to the damage. (It's instead your dexterity modifier added to the damage if you are using finesse or ranged weapons.)
And now, that's how you attack with a weapon in D&D! :D You can ask any question to me you want!
The DMG is pretty light on basic rules...
... unlike the Basic Rules: https://www.dndbeyond.com/sources/basic-rules/combat#MakinganAttack
Want to start playing but don't have anyone to play with? You can try these options: [link].
I find it difficult to figure out what you're even asking, starting with the meaning of "do the AC." You have a bunch of words arranged in a way that technically forms a sentence, but those words don't make sense in the context in which I assume you're asking a question (something to do with D&D).
Armor Class has absolutely nothing to do with the amount of damage dealt by an attack. AC is used, along with attack rolls, to see if an attack hits or misses. Damage rolls are separate things and neither the target's AC nor the attacker's attack roll are used in them. Damage is different depending on the attack, what weapon, spell, or other effect is causing the damage, but in combat it is usually whatever damage die/dice is the base for the weapon or spell being used to make the attack plus any appropriate modifiers (applicable ability modifier of the attacker, bonuses from feats or class abilities, reduction from resistance, etc).
As mentioned by others above, I suggest you actually read the combat rules which can be found in the Players Handbook or online for free at the link pangurjan helpfully listed in the post immediately above this one. The only reasons I can come up with for you even asking your question in the way you did are that you either do not know how the rules work at all or you're too drunk/stoned to make sense of anything, and the lack of typos and misspellings indicates the latter to be unlikely.
Ah. Thanks!