In Exercises 2138, solve each system of equations using matrices. Use Gaussian elimination with back-substitution or Gauss-Jordan
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In Exercises 21–38, solve each system of equations using matrices. Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
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2x + 2y + 7z = -1 2x + y + 2z = 2 4x + 6y + z = 15
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2x2y7z1 2xy2z2 4x6y z 15 2 27 2 12 2 R 4 1 6 1 15 1 NN 21 ...View the full answer
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