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Simplifying -3u + 30 = 3(-1u + 7) Reorder the terms: 30 + -3u = 3(-1u + 7) Reorder the terms: 30 + -3u = 3(7 + -1u) 30 + -3u = (7 * 3 + -1u * 3) 30 + -3u = (21 + -3u) Add '3u' to each side of the equation. 30 + -3u + 3u = 21 + -3u + 3u Combine like terms: -3u + 3u = 0 30 + 0 = 21 + -3u + 3u 30 = 21 + -3u + 3u Combine like terms: -3u + 3u = 0 30 = 21 + 0 30 = 21 Solving 30 = 21 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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