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Simplifying 12k + -15 + -3k = 48 + 9k Reorder the terms: -15 + 12k + -3k = 48 + 9k Combine like terms: 12k + -3k = 9k -15 + 9k = 48 + 9k Add '-9k' to each side of the equation. -15 + 9k + -9k = 48 + 9k + -9k Combine like terms: 9k + -9k = 0 -15 + 0 = 48 + 9k + -9k -15 = 48 + 9k + -9k Combine like terms: 9k + -9k = 0 -15 = 48 + 0 -15 = 48 Solving -15 = 48 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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