Find the dimension and a basis for the solution space. (If an answer does not exist, enter DNE for the dimension and in any cell of the vector.) 2x₁ + 4x₂ - 4x3 + 2x4 = 18 3x₁2x₂ + 2x35x4 = 35 4X₁ + X₂ X3 + 4x4 1 dimension basis

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