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Simplifying 3 = -2(4 + -2u) + -6u 3 = (4 * -2 + -2u * -2) + -6u 3 = (-8 + 4u) + -6u Combine like terms: 4u + -6u = -2u 3 = -8 + -2u Solving 3 = -8 + -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. 3 + 2u = -8 + -2u + 2u Combine like terms: -2u + 2u = 0 3 + 2u = -8 + 0 3 + 2u = -8 Add '-3' to each side of the equation. 3 + -3 + 2u = -8 + -3 Combine like terms: 3 + -3 = 0 0 + 2u = -8 + -3 2u = -8 + -3 Combine like terms: -8 + -3 = -11 2u = -11 Divide each side by '2'. u = -5.5 Simplifying u = -5.5
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