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Simplifying 20u + -6 = u + 15 Reorder the terms: -6 + 20u = u + 15 Reorder the terms: -6 + 20u = 15 + u Solving -6 + 20u = 15 + 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. -6 + 20u + -1u = 15 + u + -1u Combine like terms: 20u + -1u = 19u -6 + 19u = 15 + u + -1u Combine like terms: u + -1u = 0 -6 + 19u = 15 + 0 -6 + 19u = 15 Add '6' to each side of the equation. -6 + 6 + 19u = 15 + 6 Combine like terms: -6 + 6 = 0 0 + 19u = 15 + 6 19u = 15 + 6 Combine like terms: 15 + 6 = 21 19u = 21 Divide each side by '19'. u = 1.105263158 Simplifying u = 1.105263158
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