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Simplifying u + 28 = 2u Reorder the terms: 28 + u = 2u Solving 28 + u = 2u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-2u' to each side of the equation. 28 + u + -2u = 2u + -2u Combine like terms: u + -2u = -1u 28 + -1u = 2u + -2u Combine like terms: 2u + -2u = 0 28 + -1u = 0 Add '-28' to each side of the equation. 28 + -28 + -1u = 0 + -28 Combine like terms: 28 + -28 = 0 0 + -1u = 0 + -28 -1u = 0 + -28 Combine like terms: 0 + -28 = -28 -1u = -28 Divide each side by '-1'. u = 28 Simplifying u = 28
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