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OpenStudy (anonymous):
Use a graphing calculator or spreadsheet software to solve 4x + y + z = 1 8x – 4y – 7z = 2 5y + 9z = 3 using matrices. A. (0.5, -3, 2) B. (1, 2, 3) C. (-3, 0.5, 2) D. (0.5, 3, 2)
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OpenStudy (fibonaccichick666):
Can you write up the coefficient matrix?
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