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Simplifying -4(7k + 2) = -20 Reorder the terms: -4(2 + 7k) = -20 (2 * -4 + 7k * -4) = -20 (-8 + -28k) = -20 Solving -8 + -28k = -20 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -28k = -20 + 8 Combine like terms: -8 + 8 = 0 0 + -28k = -20 + 8 -28k = -20 + 8 Combine like terms: -20 + 8 = -12 -28k = -12 Divide each side by '-28'. k = 0.4285714286 Simplifying k = 0.4285714286
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