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Simplifying K * 2 + 9 = 30 Reorder the terms for easier multiplication: 2K + 9 = 30 Reorder the terms: 9 + 2K = 30 Solving 9 + 2K = 30 Solving for variable 'K'. Move all terms containing K to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2K = 30 + -9 Combine like terms: 9 + -9 = 0 0 + 2K = 30 + -9 2K = 30 + -9 Combine like terms: 30 + -9 = 21 2K = 21 Divide each side by '2'. K = 10.5 Simplifying K = 10.5
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