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OpenStudy (anonymous):
Help with solving the system of equations? 2x+3z=3 4x-3y+7z=5 8x-9y+15z=9 I'm supposed to use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
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OpenStudy (anonymous):
use cramers rule
OpenStudy (anonymous):
What is cramers rule?
OpenStudy (luigi0210):
Could use matrices
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