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Simplifying -2(u + 8) = -4u + 2 Reorder the terms: -2(8 + u) = -4u + 2 (8 * -2 + u * -2) = -4u + 2 (-16 + -2u) = -4u + 2 Reorder the terms: -16 + -2u = 2 + -4u Solving -16 + -2u = 2 + -4u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '4u' to each side of the equation. -16 + -2u + 4u = 2 + -4u + 4u Combine like terms: -2u + 4u = 2u -16 + 2u = 2 + -4u + 4u Combine like terms: -4u + 4u = 0 -16 + 2u = 2 + 0 -16 + 2u = 2 Add '16' to each side of the equation. -16 + 16 + 2u = 2 + 16 Combine like terms: -16 + 16 = 0 0 + 2u = 2 + 16 2u = 2 + 16 Combine like terms: 2 + 16 = 18 2u = 18 Divide each side by '2'. u = 9 Simplifying u = 9
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