matrix method 2x + 3y +3 z = 5, x – 2y + z = – 4 and 3x – y – 2z = 3

Matrix method 2x + 3y +3 z = 5, x – 2y + z = – 4 and 3x – y – 2z = 3

Use formula

Plug the value we get

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Hence answer is x =1 , y= 2  and z = -1