MAT 119 - Arizona State University

The section of the augmented matrix to the left of the vertical bar is similar to an identity matrix. Here, the solutions can be picked out without back substitution as in the row-echelon form. x = 5 and y = 3. For a system with 2 equations in 2 variables, one of the following forms may result after getting the matrix in row-echelon form. ................
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