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Simplifying -1u + -8 = 3u Reorder the terms: -8 + -1u = 3u Solving -8 + -1u = 3u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-3u' to each side of the equation. -8 + -1u + -3u = 3u + -3u Combine like terms: -1u + -3u = -4u -8 + -4u = 3u + -3u Combine like terms: 3u + -3u = 0 -8 + -4u = 0 Add '8' to each side of the equation. -8 + 8 + -4u = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -4u = 0 + 8 -4u = 0 + 8 Combine like terms: 0 + 8 = 8 -4u = 8 Divide each side by '-4'. u = -2 Simplifying u = -2
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