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Simplifying -7u + -49 = -9(u + 5) Reorder the terms: -49 + -7u = -9(u + 5) Reorder the terms: -49 + -7u = -9(5 + u) -49 + -7u = (5 * -9 + u * -9) -49 + -7u = (-45 + -9u) Solving -49 + -7u = -45 + -9u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '9u' to each side of the equation. -49 + -7u + 9u = -45 + -9u + 9u Combine like terms: -7u + 9u = 2u -49 + 2u = -45 + -9u + 9u Combine like terms: -9u + 9u = 0 -49 + 2u = -45 + 0 -49 + 2u = -45 Add '49' to each side of the equation. -49 + 49 + 2u = -45 + 49 Combine like terms: -49 + 49 = 0 0 + 2u = -45 + 49 2u = -45 + 49 Combine like terms: -45 + 49 = 4 2u = 4 Divide each side by '2'. u = 2 Simplifying u = 2
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