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Simplifying 42 = 2u + 8 Reorder the terms: 42 = 8 + 2u Solving 42 = 8 + 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. 42 + -2u = 8 + 2u + -2u Combine like terms: 2u + -2u = 0 42 + -2u = 8 + 0 42 + -2u = 8 Add '-42' to each side of the equation. 42 + -42 + -2u = 8 + -42 Combine like terms: 42 + -42 = 0 0 + -2u = 8 + -42 -2u = 8 + -42 Combine like terms: 8 + -42 = -34 -2u = -34 Divide each side by '-2'. u = 17 Simplifying u = 17
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