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Simplifying 2(u + 2) + u = 3(u + -1) Reorder the terms: 2(2 + u) + u = 3(u + -1) (2 * 2 + u * 2) + u = 3(u + -1) (4 + 2u) + u = 3(u + -1) Combine like terms: 2u + u = 3u 4 + 3u = 3(u + -1) Reorder the terms: 4 + 3u = 3(-1 + u) 4 + 3u = (-1 * 3 + u * 3) 4 + 3u = (-3 + 3u) Add '-3u' to each side of the equation. 4 + 3u + -3u = -3 + 3u + -3u Combine like terms: 3u + -3u = 0 4 + 0 = -3 + 3u + -3u 4 = -3 + 3u + -3u Combine like terms: 3u + -3u = 0 4 = -3 + 0 4 = -3 Solving 4 = -3 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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