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Simplifying -2u + 39 = -7(u + -7) Reorder the terms: 39 + -2u = -7(u + -7) Reorder the terms: 39 + -2u = -7(-7 + u) 39 + -2u = (-7 * -7 + u * -7) 39 + -2u = (49 + -7u) Solving 39 + -2u = 49 + -7u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '7u' to each side of the equation. 39 + -2u + 7u = 49 + -7u + 7u Combine like terms: -2u + 7u = 5u 39 + 5u = 49 + -7u + 7u Combine like terms: -7u + 7u = 0 39 + 5u = 49 + 0 39 + 5u = 49 Add '-39' to each side of the equation. 39 + -39 + 5u = 49 + -39 Combine like terms: 39 + -39 = 0 0 + 5u = 49 + -39 5u = 49 + -39 Combine like terms: 49 + -39 = 10 5u = 10 Divide each side by '5'. u = 2 Simplifying u = 2
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