Final answer:
The correct way to solve (iii) using the Gauss-Jordan method is to adjust the matrix coefficients and apply row operations. This method allows us to transform a system of linear equations into an equivalent system with a row-echelon form or reduced row-echelon form.
Step-by-step explanation:
The correct way to solve (iii) using the Gauss-Jordan method is to adjust the matrix coefficients and apply row operations. This method allows us to transform a system of linear equations into an equivalent system with a row-echelon form or reduced row-echelon form.
Here are the step-by-step instructions:
- Write the augmented matrix for the system of equations.
 - Choose a pivot element, typically the first non-zero entry in the first row.
 - Use row operations to make all other entries in the column of the pivot element equal to zero.
 - Repeat steps 2 and 3 for the next column.
 - Continue this process until you reach the last column.
 - At this point, the matrix should be in row-echelon or reduced row-echelon form.
 - If necessary, perform back substitution to find the values of the variables.