Question 1 Use Gaussian Elimination to solve the following linear systems, if possible, and determine whether row interchanges are necessary: a. 2x₁ * +1.5r, -3x₂ 2.x, -2.x₂ +0.5x₂ + X3 = 3 = 4.5 =-6.6 +x₁=0.8 b. -0.5x₂ + x3 -X₂ + X₂ x₁ -0.5x₂ + x3 + x₁ = 5 x₁ 2.x, = 4 -x₂ + x₁ = 5 = 2

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A: The given system of equations

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