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Simplifying u + 66 = 4u Reorder the terms: 66 + u = 4u Solving 66 + u = 4u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-4u' to each side of the equation. 66 + u + -4u = 4u + -4u Combine like terms: u + -4u = -3u 66 + -3u = 4u + -4u Combine like terms: 4u + -4u = 0 66 + -3u = 0 Add '-66' to each side of the equation. 66 + -66 + -3u = 0 + -66 Combine like terms: 66 + -66 = 0 0 + -3u = 0 + -66 -3u = 0 + -66 Combine like terms: 0 + -66 = -66 -3u = -66 Divide each side by '-3'. u = 22 Simplifying u = 22
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