<PRE><B>Question 1210543</B>
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USE THE SUBSTITUTION METHOD TO SOLVE a-2b=a, 2a+3b=4
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The post by @CPhill does not contain a real solution,
so the reason WHY it was created and posted to the forum is dark and unclear,
while a complete and correct solution by @ikleyn was just placed at this spot.


I recommend a reader do not spend his valuable time for nothing 
and to ignore the post by @CPhill.



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