The value of x3 obtained by solving following system of linear...

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The value of x₃ obtained by solving following system of linear equation is
x₁ + 2x₂ - 2x₃ = 4
2x₁ + x₂ + x₃ = -2
-x₁ + x₂ - x₃ = 2

A. -12

B. -2

D. 12

Answer: Option B

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