$\displaystyle \lim_{x \rightarrow a} x = a $

this is my scratch work *

$\displaystyle 0< \left | x-a \right | < \delta $

$\displaystyle \left | x-a \right | < \epsilon $

I let

$\displaystyle \delta = \epsilon $

Im not sure if this is right it seems to simple. I am confused by this because i have only worked with numbers.

Help me please!