Algebra - Ch. 35: Systems of of Linear Eq. in 3 Variables (12 of 25) Method 6: Inverse Matrix

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We will learn method 6: INVERSE MATRIX method to solve the system of linear equations in 3 variables:
Eqn. 1: 2x+y-z=5
Eqn. 2: x+y-z=4
Eqn. 3: -x-2y+3z=-8

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