Question: In Problems 1122, use elementary row operations to transform each augmented coefficient matrix to echelon form. Then solve the system by back substitution. 2x 1

In Problems 11–22, use elementary row operations to transform each augmented coefficient matrix to echelon form. Then solve the system by back substitution.

2x₁ + 8x₂ + 3x₃ = 2

x₁ + 3x₂ + 2x₃ = 5

2x₁ + 7x₂ + 4x₃ = 8

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