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Simplifying 7(u + 2) = 42 Reorder the terms: 7(2 + u) = 42 (2 * 7 + u * 7) = 42 (14 + 7u) = 42 Solving 14 + 7u = 42 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 7u = 42 + -14 Combine like terms: 14 + -14 = 0 0 + 7u = 42 + -14 7u = 42 + -14 Combine like terms: 42 + -14 = 28 7u = 28 Divide each side by '7'. u = 4 Simplifying u = 4
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