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Simplifying -9(-1k) = 3(3k + -9) Remove parenthesis around (-1k) -9 * -1k = 3(3k + -9) Multiply -9 * -1 9k = 3(3k + -9) Reorder the terms: 9k = 3(-9 + 3k) 9k = (-9 * 3 + 3k * 3) 9k = (-27 + 9k) Add '-9k' to each side of the equation. 9k + -9k = -27 + 9k + -9k Combine like terms: 9k + -9k = 0 0 = -27 + 9k + -9k Combine like terms: 9k + -9k = 0 0 = -27 + 0 0 = -27 Solving 0 = -27 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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