What is the best / most economical way to replace the memory on a macbook?

Question

macbook

Now there are two slats of 2GB each.

There are simple upgrade options -
4 + 4
8 + 8

, but is it possible to do this - leave 2GB and add 8GB?
it will turn out 10

and will 8GB be enough for a housewife who has a macbook in the kitchen
and all the work is in the browser, though there are a lot of tabs
elcapitan system, in the future you can upgrade to a high-speed

memory: SODIMM AMD Radeon R5 Entertainment Series R534G1601S1S-U by the
way, norms?

Answer 1

in the kitchen, 8Gb macbook is not enough, you need to transfer it to the office, theoretically it will work there.

Answer 2

enough poppy 10gb ... but not the fact that it will start
8mi is also enough