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Simplifying u + 15 = 2 + 3u Reorder the terms: 15 + u = 2 + 3u Solving 15 + u = 2 + 3u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-3u' to each side of the equation. 15 + u + -3u = 2 + 3u + -3u Combine like terms: u + -3u = -2u 15 + -2u = 2 + 3u + -3u Combine like terms: 3u + -3u = 0 15 + -2u = 2 + 0 15 + -2u = 2 Add '-15' to each side of the equation. 15 + -15 + -2u = 2 + -15 Combine like terms: 15 + -15 = 0 0 + -2u = 2 + -15 -2u = 2 + -15 Combine like terms: 2 + -15 = -13 -2u = -13 Divide each side by '-2'. u = 6.5 Simplifying u = 6.5
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