Algebra 2 X unit 3: linear systems of equations

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2.   -1x - 5y = -57 4x - 8y = -108	3.   -5x - 9y = 34 8x - 6y = -136
4.   -3x - 2y = 29 4x - 1y = -57	5.   -5x + 4y = 98 6x + 9y = -21	6.   -1x - 7y = -12 -3x - 8y = 3

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1. Get to the Matrx Menu (some may have a MATRX button, others may need to hit 2^nd, x ^-1 ).

2. Move over to the left to the Edit column.

3. Enter your matrix A as a 3x3 matrix, and enter each element of the matrix.

4. Quit out of the menu.

et’s do a 3x3 on the calculator.
1. 2x – y + 2z = 5

-3x + y – z = -1