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Simplifying -23 = 5u + 7 Reorder the terms: -23 = 7 + 5u Solving -23 = 7 + 5u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-5u' to each side of the equation. -23 + -5u = 7 + 5u + -5u Combine like terms: 5u + -5u = 0 -23 + -5u = 7 + 0 -23 + -5u = 7 Add '23' to each side of the equation. -23 + 23 + -5u = 7 + 23 Combine like terms: -23 + 23 = 0 0 + -5u = 7 + 23 -5u = 7 + 23 Combine like terms: 7 + 23 = 30 -5u = 30 Divide each side by '-5'. u = -6 Simplifying u = -6
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