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Simplifying 1 = 2u + -7 Reorder the terms: 1 = -7 + 2u Solving 1 = -7 + 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. 1 + -2u = -7 + 2u + -2u Combine like terms: 2u + -2u = 0 1 + -2u = -7 + 0 1 + -2u = -7 Add '-1' to each side of the equation. 1 + -1 + -2u = -7 + -1 Combine like terms: 1 + -1 = 0 0 + -2u = -7 + -1 -2u = -7 + -1 Combine like terms: -7 + -1 = -8 -2u = -8 Divide each side by '-2'. u = 4 Simplifying u = 4
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