Use Gaussian Elimination to Solve the System of Equations

question 174

Multiple Choice

Use Gaussian elimination to solve the system of equations.
-x - y + z = 3 x + y + z = 9
X + y - z = 1

• A) (4, 2, 3)
• B) (2, 4, 3)
• C) No solution
• D) (2, 3, 4)

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