# How to simplify 8x-4x and yxyxy and 4x+3y-2x+5y

Question asked by: jessicaR

Asked on: 29 Sep 2009

8x - 4x is 4x.

All you have to do is to remember that you can add and subtract and multiply x's just in the common sense way, think of apples.

If you have 8 apples and you eat 4 apples, then you have 4 apples left - the x could stand for apples.

By: knowitall

Replied at: 11 Oct 2009

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