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L. Pretest: Unit 1 Which system of equations represents the matrix shown below? -1 -2 A 3x+6y - z=8 O A. -2x+3y+2= 4 4x+5y +4z=-2

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L. Pretest: Unit 1 Which system of equations represents the matrix shown below? -1 -2 A 3x+6y - z=8 O A. -2x+3y+2= 4 4x+5y +4z=-2 3x+6y +z=8 O B. 2x+3y+2= 4 4x +5y +42- -2 3x46y - z=8 O C. -2x+3y = 4 4x+5y +4z= -2 3x+6y + z =B O D. 2x+3y +2z - 4 4x +5y +4z = 2 SUBMIT

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