In Exercises 3-6, solve the systems of equations using Gaussian elimination. (a) Perform
Chapter 7, Problem 3(choose chapter or problem)
In Exercises 3-6, solve the systems of equations using Gaussian elimination. (a) Perform the back substitution using equations. (b) Perform the back substitution using matrices. X1 + Xz + X3 = 6X1 - Xz + X3 = 2x1 + 2x2 + 3x3 = 14
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