SYSTEMS OF EQUATIONS Cramer's Rule (Page 3 of 6)

Now copy the coefficient matrix, [A], into matrix [B]. Matrix [B] will be used to find the other three determinants necessary with Cramer's Rule.

 MATRX key. 1: menu selection. STO key. MATRX key. 2: menu selection. ENTER key. Calculator screen image.

Edit matrix B, replacing the first column of entries (coefficients of x) with the constant terms. Use the arrow keys to maneuver the cursor to the correct positions.

 MATRX key. [EDIT] 2: menu selection. Down arrow key. Down arrow key.
 Negation key. 8 Down arrow key. 9 Down arrow key. 43 ENTER key.		 Calculator screen image.
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