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Simplifying (K + 3)(7k + 3) = 0 Reorder the terms: (3 + K)(7k + 3) = 0 Reorder the terms: (3 + K)(3 + 7k) = 0 Multiply (3 + K) * (3 + 7k) (3(3 + 7k) + K(3 + 7k)) = 0 ((3 * 3 + 7k * 3) + K(3 + 7k)) = 0 ((9 + 21k) + K(3 + 7k)) = 0 (9 + 21k + (3 * K + 7k * K)) = 0 (9 + 21k + (3K + 7kK)) = 0 Reorder the terms: (9 + 3K + 21k + 7kK) = 0 (9 + 3K + 21k + 7kK) = 0 Solving 9 + 3K + 21k + 7kK = 0 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 + 3K + 21k + -9 + 7kK = 0 + -9 Reorder the terms: 9 + -9 + 3K + 21k + 7kK = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 3K + 21k + 7kK = 0 + -9 3K + 21k + 7kK = 0 + -9 Combine like terms: 0 + -9 = -9 3K + 21k + 7kK = -9 Add '-21k' to each side of the equation. 3K + 21k + -21k + 7kK = -9 + -21k Combine like terms: 21k + -21k = 0 3K + 0 + 7kK = -9 + -21k 3K + 7kK = -9 + -21k Reorder the terms: 9 + 3K + 21k + 7kK = -9 + -21k + 9 + 21k Reorder the terms: 9 + 3K + 21k + 7kK = -9 + 9 + -21k + 21k Combine like terms: -9 + 9 = 0 9 + 3K + 21k + 7kK = 0 + -21k + 21k 9 + 3K + 21k + 7kK = -21k + 21k Combine like terms: -21k + 21k = 0 9 + 3K + 21k + 7kK = 0 The solution to this equation could not be determined.
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