Answers

2014-10-14T21:17:18+08:00
Algebra the letter here is called variable and a number is constant
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There are also different types of Algebraic Expressions according to terms they are the monomial,binomial,Trinomial and Multinomial thats all I know
2014-10-14T21:23:52+08:00
I agree to disagree with that matter. algebra is a very easy subject. you just have a background knowledge of basic math. all you need is to start on the right step.

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You're right its easy in basic
hahaha... you need a continuous greed for knowledge about it.