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Simplifying 28 = -8u + -7 + 2u Reorder the terms: 28 = -7 + -8u + 2u Combine like terms: -8u + 2u = -6u 28 = -7 + -6u Solving 28 = -7 + -6u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '6u' to each side of the equation. 28 + 6u = -7 + -6u + 6u Combine like terms: -6u + 6u = 0 28 + 6u = -7 + 0 28 + 6u = -7 Add '-28' to each side of the equation. 28 + -28 + 6u = -7 + -28 Combine like terms: 28 + -28 = 0 0 + 6u = -7 + -28 6u = -7 + -28 Combine like terms: -7 + -28 = -35 6u = -35 Divide each side by '6'. u = -5.833333333 Simplifying u = -5.833333333
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