Question: Write the system of equations corresponding to the augmented matrix. Then perform the row operationsUpper R 1 equals negative 2 r 2 plus r 1

Write the system of equations corresponding to the augmented matrix. Then perform the row operationsUpper R 1 equals negative 2 r 2 plus r 1 and Upper R 3 equals 2 r 2 plus r 3 on the given augmented matrix. left bracket Start 3 By 4 Table 1st Row 1st Column 7 2nd Column negative 7 3rd Column 1 4st Column negative 5 2nd Row 1st Column 3 2nd Column negative 2 3rd Column 8 4st Column negative 5 3rd Row 1st Column negative 6 2nd Column 1 3rd Column 5 4st Column 3 EndTable right bracket Question content area bottom Part 1 Which of the following is the system of equations corresponding to the augmented matrix? A.left brace Start 3 By 3 Matrix 1st Row 1st Column 7 x minus 7 y plus z 2nd Column equals 3rd Column negative 5 w 2nd Row 1st Column 3 x minus 2 y plus 8 z 2nd Column equals 3rd Column negative 5 w 3rd Row 1st Column negative 6 x plus y plus 5 z 2nd Column equals 3rd Column 3 w EndMatrix left brace Start 3 By 3 Matrix 1st Row 1st Column 7 x minus 7 y plus z 2nd Column equals 3rd Column negative 5 w 2nd Row 1st Column 3 x minus 2 y plus 8 z 2nd Column equals 3rd Column negative 5 w 3rd Row 1st Column negative 6 x plus y plus 5 z 2nd Column equals 3rd Column 3 w EndMatrix B.left brace Start 3 By 3 Matrix 1st Row 1st Column 7 x minus 7 y plus z minus 5 2nd Column equals 3rd Column 0 2nd Row 1st Column 3 x minus 2 y plus 8 z minus 5 2nd Column equals 3rd Column 0 3rd Row 1st Column negative 6 x plus y plus 5 z plus 3 2nd Column equals 3rd Column 0 EndMatrix left brace St

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