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