What does simplify mean in math terminology it's very hard

To simplify a fraction, for instance, it means to bring it down to the simplest form possible.
For example,

10000000/50000000

looks like a really big honkin' number, but when you simplify it, it turns out to be just 1/5.
Hope that helped =)

To simplify something in math, it means to put that something into the best terms for that problem.

For example, if you are asked to simplify a fraction, that means that you need to put the fraction in to the lowest terms.

Hope I helped!
Ossashi 乁(ⱺ ͜ʖⱺ)ㄏ

The answer would be 484

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8