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Simplifying 5(u + 1) + -7 = 3(u + -1) + 2u Reorder the terms: 5(1 + u) + -7 = 3(u + -1) + 2u (1 * 5 + u * 5) + -7 = 3(u + -1) + 2u (5 + 5u) + -7 = 3(u + -1) + 2u Reorder the terms: 5 + -7 + 5u = 3(u + -1) + 2u Combine like terms: 5 + -7 = -2 -2 + 5u = 3(u + -1) + 2u Reorder the terms: -2 + 5u = 3(-1 + u) + 2u -2 + 5u = (-1 * 3 + u * 3) + 2u -2 + 5u = (-3 + 3u) + 2u Combine like terms: 3u + 2u = 5u -2 + 5u = -3 + 5u Add '-5u' to each side of the equation. -2 + 5u + -5u = -3 + 5u + -5u Combine like terms: 5u + -5u = 0 -2 + 0 = -3 + 5u + -5u -2 = -3 + 5u + -5u Combine like terms: 5u + -5u = 0 -2 = -3 + 0 -2 = -3 Solving -2 = -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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