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Mathematics 9 Online
OpenStudy (anonymous):

Linear Algebra: A. Solve the following system and decompose the solution set. B. What is the geometric description of the solution set? 2x+y-3z=4 x-2y+z=3 I know that I need to solve for a variable then plug it in, so I solved for x in the second equation, which is x=3+2y+x, but I'm not sure what to do next. I think I have to have a free variable too, right? Thanks!

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