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Section 12.1 Systems of Linear Equations; Substitution and ...

Section 12.1 Systems of Linear Equations; Substitution and ...

Section 12.1 Systems of Linear Equations; Substitution and ...

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⎧2x−3y−<br />

z = 0<br />

⎪<br />

Solve: ⎨−<br />

x+ 2y+ z = 5<br />

⎪⎩ 3x−4y− z = 1

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