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Simplifying 9u + 39 = 2(u + -5) Reorder the terms: 39 + 9u = 2(u + -5) Reorder the terms: 39 + 9u = 2(-5 + u) 39 + 9u = (-5 * 2 + u * 2) 39 + 9u = (-10 + 2u) Solving 39 + 9u = -10 + 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. 39 + 9u + -2u = -10 + 2u + -2u Combine like terms: 9u + -2u = 7u 39 + 7u = -10 + 2u + -2u Combine like terms: 2u + -2u = 0 39 + 7u = -10 + 0 39 + 7u = -10 Add '-39' to each side of the equation. 39 + -39 + 7u = -10 + -39 Combine like terms: 39 + -39 = 0 0 + 7u = -10 + -39 7u = -10 + -39 Combine like terms: -10 + -39 = -49 7u = -49 Divide each side by '7'. u = -7 Simplifying u = -7
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