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Simplifying 56 + u = 9u Solving 56 + u = 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. 56 + u + -9u = 9u + -9u Combine like terms: u + -9u = -8u 56 + -8u = 9u + -9u Combine like terms: 9u + -9u = 0 56 + -8u = 0 Add '-56' to each side of the equation. 56 + -56 + -8u = 0 + -56 Combine like terms: 56 + -56 = 0 0 + -8u = 0 + -56 -8u = 0 + -56 Combine like terms: 0 + -56 = -56 -8u = -56 Divide each side by '-8'. u = 7 Simplifying u = 7
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