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Simplifying 91 = -7k Solving 91 = -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. 91 + 7k = -7k + 7k Combine like terms: -7k + 7k = 0 91 + 7k = 0 Add '-91' to each side of the equation. 91 + -91 + 7k = 0 + -91 Combine like terms: 91 + -91 = 0 0 + 7k = 0 + -91 7k = 0 + -91 Combine like terms: 0 + -91 = -91 7k = -91 Divide each side by '7'. k = -13 Simplifying k = -13
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