Question: please answer all questions B. Use the matrix method or otherwise to solve the following system of simultaneous equations: i. x + 2y + 3z

please answer all questions B. Use the matrix

please answer all questions

B. Use the matrix method or otherwise to solve the following system of simultaneous equations: i. x + 2y + 3z = -5 ii. 3x + y - 3z = 4 iii. - 3x + 4y + 7z=-7 (15 marks)

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