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OpenStudy (anonymous):
Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
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OpenStudy (anonymous):
Have you formed the augmented matrix?
OpenStudy (anonymous):
no
OpenStudy (anonymous):
@RedCan
OpenStudy (anonymous):
1 1 1|-5 1 -1 3|-1 ? ? ?| ?
OpenStudy (anonymous):
I'm confused! Im sorry @Redcan
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