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Simplifying 2u + 1 = u + 4 Reorder the terms: 1 + 2u = u + 4 Reorder the terms: 1 + 2u = 4 + u Solving 1 + 2u = 4 + u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-1u' to each side of the equation. 1 + 2u + -1u = 4 + u + -1u Combine like terms: 2u + -1u = 1u 1 + 1u = 4 + u + -1u Combine like terms: u + -1u = 0 1 + 1u = 4 + 0 1 + 1u = 4 Add '-1' to each side of the equation. 1 + -1 + 1u = 4 + -1 Combine like terms: 1 + -1 = 0 0 + 1u = 4 + -1 1u = 4 + -1 Combine like terms: 4 + -1 = 3 1u = 3 Divide each side by '1'. u = 3 Simplifying u = 3
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