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Simplifying 3(u + 4) = -6u + 30 Reorder the terms: 3(4 + u) = -6u + 30 (4 * 3 + u * 3) = -6u + 30 (12 + 3u) = -6u + 30 Reorder the terms: 12 + 3u = 30 + -6u Solving 12 + 3u = 30 + -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. 12 + 3u + 6u = 30 + -6u + 6u Combine like terms: 3u + 6u = 9u 12 + 9u = 30 + -6u + 6u Combine like terms: -6u + 6u = 0 12 + 9u = 30 + 0 12 + 9u = 30 Add '-12' to each side of the equation. 12 + -12 + 9u = 30 + -12 Combine like terms: 12 + -12 = 0 0 + 9u = 30 + -12 9u = 30 + -12 Combine like terms: 30 + -12 = 18 9u = 18 Divide each side by '9'. u = 2 Simplifying u = 2
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