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Simplifying 4u + -7 = u Reorder the terms: -7 + 4u = u Solving -7 + 4u = u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-1u' to each side of the equation. -7 + 4u + -1u = u + -1u Combine like terms: 4u + -1u = 3u -7 + 3u = u + -1u Combine like terms: u + -1u = 0 -7 + 3u = 0 Add '7' to each side of the equation. -7 + 7 + 3u = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 3u = 0 + 7 3u = 0 + 7 Combine like terms: 0 + 7 = 7 3u = 7 Divide each side by '3'. u = 2.333333333 Simplifying u = 2.333333333
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