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Simplifying 15 + -2u = 30 + -5u Solving 15 + -2u = 30 + -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. 15 + -2u + 5u = 30 + -5u + 5u Combine like terms: -2u + 5u = 3u 15 + 3u = 30 + -5u + 5u Combine like terms: -5u + 5u = 0 15 + 3u = 30 + 0 15 + 3u = 30 Add '-15' to each side of the equation. 15 + -15 + 3u = 30 + -15 Combine like terms: 15 + -15 = 0 0 + 3u = 30 + -15 3u = 30 + -15 Combine like terms: 30 + -15 = 15 3u = 15 Divide each side by '3'. u = 5 Simplifying u = 5
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