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Mathematics 18 Online
OpenStudy (anonymous):

Use the substitution method to solve the following system of equations. 4x – y – 3z = –3 x – 2y – 2z = –3 x + y + 3z = –2

OpenStudy (saifoo.khan):

do u need the answers?

OpenStudy (anonymous):

Yes , Or Teach Me How To Do It

OpenStudy (saifoo.khan):

http://www.youtube.com/watch?v=woqq3Sls1d8

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