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Simplifying -4x2 + -4k + -12 = 0 Reorder the terms: -12 + -4k + -4x2 = 0 Solving -12 + -4k + -4x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '12' to each side of the equation. -12 + -4k + 12 + -4x2 = 0 + 12 Reorder the terms: -12 + 12 + -4k + -4x2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -4k + -4x2 = 0 + 12 -4k + -4x2 = 0 + 12 Combine like terms: 0 + 12 = 12 -4k + -4x2 = 12 Add '4x2' to each side of the equation. -4k + -4x2 + 4x2 = 12 + 4x2 Combine like terms: -4x2 + 4x2 = 0 -4k + 0 = 12 + 4x2 -4k = 12 + 4x2 Divide each side by '-4'. k = -3 + -1x2 Simplifying k = -3 + -1x2
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