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Simplifying 2x2 + 3 + -1(k + 3) = 0 Reorder the terms: 2x2 + 3 + -1(3 + k) = 0 2x2 + 3 + (3 * -1 + k * -1) = 0 2x2 + 3 + (-3 + -1k) = 0 Reorder the terms: 3 + -3 + -1k + 2x2 = 0 Combine like terms: 3 + -3 = 0 0 + -1k + 2x2 = 0 -1k + 2x2 = 0 Solving -1k + 2x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-2x2' to each side of the equation. -1k + 2x2 + -2x2 = 0 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -1k + 0 = 0 + -2x2 -1k = 0 + -2x2 Remove the zero: -1k = -2x2 Divide each side by '-1'. k = 2x2 Simplifying k = 2x2
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