Aerin H.

asked • 04/17/21

Use matrices and Gauss-Jordan elimination to solve systems of linear equations

The matrix

1 0 4 0
0 1 −6 −1
0 0 −5 5


can be reduced in the row echelon form


1 0 0 a
0 1 0 b
0 0 1 c



where ab, and c are real numbers. Find a. (Enter an exact number.)


a = ____

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