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Simplifying 7 = 1 + 2u Solving 7 = 1 + 2u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-2u' to each side of the equation. 7 + -2u = 1 + 2u + -2u Combine like terms: 2u + -2u = 0 7 + -2u = 1 + 0 7 + -2u = 1 Add '-7' to each side of the equation. 7 + -7 + -2u = 1 + -7 Combine like terms: 7 + -7 = 0 0 + -2u = 1 + -7 -2u = 1 + -7 Combine like terms: 1 + -7 = -6 -2u = -6 Divide each side by '-2'. u = 3 Simplifying u = 3
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