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Simplifying 7 + 2u = -1 Solving 7 + 2u = -1 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. 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 = -8 2u = -8 Divide each side by '2'. u = -4 Simplifying u = -4
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