SYSTEMS OF EQUATIONS Gauss-Jordan Reduction (Page 3 of 7)

Column two is now in reduced row-echelon form, so we move on to column three. First we need to eliminate 0.2 in the top position of column three. We must multiply row three by -0.2 and add this to row one, replacing row one. The *row+ command is used again. Then save your results.

 MATRX key. [MATH] Up arrow key. F: menu selection. Negation key. 0.2 Comma key. MATRX key. 1: menu selection. Comma key.
 3 Comma key. 1 Right parenthesis key. ENTER key.		 Calculator screen image.
 CLEAR key.

 STO key. MATRX key. 1: menu selection. ENTER key.

 Calculator screen image.
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