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Simplifying 11u + -30 = 13u + -72 Reorder the terms: -30 + 11u = 13u + -72 Reorder the terms: -30 + 11u = -72 + 13u Solving -30 + 11u = -72 + 13u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-13u' to each side of the equation. -30 + 11u + -13u = -72 + 13u + -13u Combine like terms: 11u + -13u = -2u -30 + -2u = -72 + 13u + -13u Combine like terms: 13u + -13u = 0 -30 + -2u = -72 + 0 -30 + -2u = -72 Add '30' to each side of the equation. -30 + 30 + -2u = -72 + 30 Combine like terms: -30 + 30 = 0 0 + -2u = -72 + 30 -2u = -72 + 30 Combine like terms: -72 + 30 = -42 -2u = -42 Divide each side by '-2'. u = 21 Simplifying u = 21
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