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Simplifying u + 11 = 2u + -21 Reorder the terms: 11 + u = 2u + -21 Reorder the terms: 11 + u = -21 + 2u Solving 11 + u = -21 + 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. 11 + u + -2u = -21 + 2u + -2u Combine like terms: u + -2u = -1u 11 + -1u = -21 + 2u + -2u Combine like terms: 2u + -2u = 0 11 + -1u = -21 + 0 11 + -1u = -21 Add '-11' to each side of the equation. 11 + -11 + -1u = -21 + -11 Combine like terms: 11 + -11 = 0 0 + -1u = -21 + -11 -1u = -21 + -11 Combine like terms: -21 + -11 = -32 -1u = -32 Divide each side by '-1'. u = 32 Simplifying u = 32
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