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Simplifying U2 + -20u + -21 = 0 Reorder the terms: -21 + U2 + -20u = 0 Solving -21 + U2 + -20u = 0 Solving for variable 'U'. Move all terms containing U to the left, all other terms to the right. Add '21' to each side of the equation. -21 + U2 + 21 + -20u = 0 + 21 Reorder the terms: -21 + 21 + U2 + -20u = 0 + 21 Combine like terms: -21 + 21 = 0 0 + U2 + -20u = 0 + 21 U2 + -20u = 0 + 21 Combine like terms: 0 + 21 = 21 U2 + -20u = 21 Add '20u' to each side of the equation. U2 + -20u + 20u = 21 + 20u Combine like terms: -20u + 20u = 0 U2 + 0 = 21 + 20u U2 = 21 + 20u Simplifying U2 = 21 + 20u Reorder the terms: -21 + U2 + -20u = 21 + 20u + -21 + -20u Reorder the terms: -21 + U2 + -20u = 21 + -21 + 20u + -20u Combine like terms: 21 + -21 = 0 -21 + U2 + -20u = 0 + 20u + -20u -21 + U2 + -20u = 20u + -20u Combine like terms: 20u + -20u = 0 -21 + U2 + -20u = 0 The solution to this equation could not be determined.
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