Question 1125319
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It looks like I need to give a lecture to you about the rules and good practice at this forum.


<pre>
1.  The first rule, the policy and the requirement of this forum is

              <U>ONE and ONLY ONE problem per post.</U>



2.  We do not serve industrialists who submit many problems in one post.



3.  The goal of this forum and the intention of the tutors is to TEACH - not to do your work instead of you, by substituting you.



4.  When you come with several problems in one post, it is not a request for teaching or for help.

    It is called differently.


    It is called "please do my work instead of me".



5.  Why then you stopped with only 7 problems ?

    Copy and paste the entire textbook  - page after page !
</pre>

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I hope you understand my notes in the right way.


I admit that you are a novice visitor, not familiar yet with the rules of the forum.


So, welcome to the forum, and if you want to learn about the Elimination method for 2x2-linear systems, you may look into the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF= http://www.algebra.com/algebra/homework/coordinate/lessons/Solution-of-the-lin-syst-of-two-eqns-with-two-unknowns-Elimination-method.lesson>Solution of the linear system of two equations in two unknowns by the Elimination method</A> 

in this site.


It is free of charge, as everything else at this forum.