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Simplifying -2(-7k + -4) + 9 = 13 Reorder the terms: -2(-4 + -7k) + 9 = 13 (-4 * -2 + -7k * -2) + 9 = 13 (8 + 14k) + 9 = 13 Reorder the terms: 8 + 9 + 14k = 13 Combine like terms: 8 + 9 = 17 17 + 14k = 13 Solving 17 + 14k = 13 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + 14k = 13 + -17 Combine like terms: 17 + -17 = 0 0 + 14k = 13 + -17 14k = 13 + -17 Combine like terms: 13 + -17 = -4 14k = -4 Divide each side by '14'. k = -0.2857142857 Simplifying k = -0.2857142857
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