Question 1205272
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Do not pack more than 1 (one) problem per post.



It is against the rules of this forum;  against the common sense,
perpendicular to the rules of good behavior and against your own interests.



For the rules of this forum,  read at this web-page


https://www.algebra.com/tutors/students/ask.mpl?action=ask_question&topic=Equations&return_url=http://www.algebra.com/algebra/homework/equations/


from which you post your problems.  Read it attentively and find many useful instructions there.



                Become a civilized user / visitor . . .