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Simplifying 7 = 6 + u Solving 7 = 6 + 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 + -1u = 6 + u + -1u Combine like terms: u + -1u = 0 7 + -1u = 6 + 0 7 + -1u = 6 Add '-7' to each side of the equation. 7 + -7 + -1u = 6 + -7 Combine like terms: 7 + -7 = 0 0 + -1u = 6 + -7 -1u = 6 + -7 Combine like terms: 6 + -7 = -1 -1u = -1 Divide each side by '-1'. u = 1 Simplifying u = 1
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