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