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Mathematics 8 Online
OpenStudy (matimaticas):

can someone solve this system? 3x + 3y + 2z = −5 x + y + 3z = −4 2x + 2y + 5z = −7

OpenStudy (gschibby):

Use Gauss/Jordan-elimination ;)

OpenStudy (gschibby):

Hm, my calculator says "infinetly many solutions" :P

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