Question: Given the equations 10x 1 + 2x 2 x 3 = 27 3x 1 6x 2 + 2x 3 = 61.5 x

Given the equations

10x1 + 2x2 – x3 = 27

–3x1 – 6x2 + 2x3 = – 61.5

x1 + x2 + 5x3 = – 21.5

(a) Solve by naïve Guess elimination Show all steps of the computation.

(b) Substitute your results into the original equations to check your answer.

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