Solve the System of Equations by Using an Inverse Matrix

question 221

Multiple Choice

Solve the system of equations by using an inverse matrix.
-2x + 8y + 6z = 20 4x + 2y - 2z = -2
3x - y + z = 11

• A) (2, 1, 6)
• B) (-1, 2, 1)
• C) (2, -1, 4)
• D) ɸ

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