How to multiple dice math

[Preachery]

I want to do for example 3d20+1

But i dont want to add +1 on result add every 3 dice like

3d20+1 one dice 17+1 others are 3+1 , 9+1 like add each of them

Does this possible?

[lulunac27a]

Yes, it's possible by using 3d20+3 for example for rolling 3 dice.