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Simplifying -4 + -9k = -49 Solving -4 + -9k = -49 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -9k = -49 + 4 Combine like terms: -4 + 4 = 0 0 + -9k = -49 + 4 -9k = -49 + 4 Combine like terms: -49 + 4 = -45 -9k = -45 Divide each side by '-9'. k = 5 Simplifying k = 5
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