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Simplifying u2 + 21 = 10u2 + 30 Reorder the terms: 21 + u2 = 10u2 + 30 Reorder the terms: 21 + u2 = 30 + 10u2 Solving 21 + u2 = 30 + 10u2 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-10u2' to each side of the equation. 21 + u2 + -10u2 = 30 + 10u2 + -10u2 Combine like terms: u2 + -10u2 = -9u2 21 + -9u2 = 30 + 10u2 + -10u2 Combine like terms: 10u2 + -10u2 = 0 21 + -9u2 = 30 + 0 21 + -9u2 = 30 Add '-21' to each side of the equation. 21 + -21 + -9u2 = 30 + -21 Combine like terms: 21 + -21 = 0 0 + -9u2 = 30 + -21 -9u2 = 30 + -21 Combine like terms: 30 + -21 = 9 -9u2 = 9 Divide each side by '-9'. u2 = -1 Simplifying u2 = -1 Reorder the terms: 1 + u2 = -1 + 1 Combine like terms: -1 + 1 = 0 1 + u2 = 0 The solution to this equation could not be determined.
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