Is it possible to generate a random number from a seed?

[AlignedCookie88]

I need to be able to generate a random number from a seed, but I can't find a way to do it. It is sorta important for all seed-based survival games. Any help would be appreciated. I want to do this once so perlin noise isn't an option.

 

[ARMcPro]

you can do algorithms on the given seed, so like multiply by 3 add 1 divide by 2 or something like that