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Simplifying 7u + 85 = 18 + -2u Reorder the terms: 85 + 7u = 18 + -2u Solving 85 + 7u = 18 + -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. 85 + 7u + 2u = 18 + -2u + 2u Combine like terms: 7u + 2u = 9u 85 + 9u = 18 + -2u + 2u Combine like terms: -2u + 2u = 0 85 + 9u = 18 + 0 85 + 9u = 18 Add '-85' to each side of the equation. 85 + -85 + 9u = 18 + -85 Combine like terms: 85 + -85 = 0 0 + 9u = 18 + -85 9u = 18 + -85 Combine like terms: 18 + -85 = -67 9u = -67 Divide each side by '9'. u = -7.444444444 Simplifying u = -7.444444444
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