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Simplifying -4 = 4 + 7k + -1 Reorder the terms: -4 = 4 + -1 + 7k Combine like terms: 4 + -1 = 3 -4 = 3 + 7k Solving -4 = 3 + 7k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-7k' to each side of the equation. -4 + -7k = 3 + 7k + -7k Combine like terms: 7k + -7k = 0 -4 + -7k = 3 + 0 -4 + -7k = 3 Add '4' to each side of the equation. -4 + 4 + -7k = 3 + 4 Combine like terms: -4 + 4 = 0 0 + -7k = 3 + 4 -7k = 3 + 4 Combine like terms: 3 + 4 = 7 -7k = 7 Divide each side by '-7'. k = -1 Simplifying k = -1
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