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Simplifying -56 = -30u + -21 Reorder the terms: -56 = -21 + -30u Solving -56 = -21 + -30u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '30u' to each side of the equation. -56 + 30u = -21 + -30u + 30u Combine like terms: -30u + 30u = 0 -56 + 30u = -21 + 0 -56 + 30u = -21 Add '56' to each side of the equation. -56 + 56 + 30u = -21 + 56 Combine like terms: -56 + 56 = 0 0 + 30u = -21 + 56 30u = -21 + 56 Combine like terms: -21 + 56 = 35 30u = 35 Divide each side by '30'. u = 1.166666667 Simplifying u = 1.166666667
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