Solue for System of equations 4x₁ - x₂ + 3x3 = 12 + 9x3 = -5 2 xi t 4x2 + 6x3 = -32 a) (2,7₁) b) (2,7, 1) c) (2₁-7, -1) d) (2, -1, 1)

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