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Simplifying 3x2 + -18x + k = 0 Reorder the terms: k + -18x + 3x2 = 0 Solving k + -18x + 3x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '18x' to each side of the equation. k + -18x + 18x + 3x2 = 0 + 18x Combine like terms: -18x + 18x = 0 k + 0 + 3x2 = 0 + 18x k + 3x2 = 0 + 18x Remove the zero: k + 3x2 = 18x Add '-3x2' to each side of the equation. k + 3x2 + -3x2 = 18x + -3x2 Combine like terms: 3x2 + -3x2 = 0 k + 0 = 18x + -3x2 k = 18x + -3x2 Simplifying k = 18x + -3x2
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