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Simplifying -55 = -13 + 7k Solving -55 = -13 + 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. -55 + -7k = -13 + 7k + -7k Combine like terms: 7k + -7k = 0 -55 + -7k = -13 + 0 -55 + -7k = -13 Add '55' to each side of the equation. -55 + 55 + -7k = -13 + 55 Combine like terms: -55 + 55 = 0 0 + -7k = -13 + 55 -7k = -13 + 55 Combine like terms: -13 + 55 = 42 -7k = 42 Divide each side by '-7'. k = -6 Simplifying k = -6
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