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Simplifying 8u + 28 = 2(u + -4) Reorder the terms: 28 + 8u = 2(u + -4) Reorder the terms: 28 + 8u = 2(-4 + u) 28 + 8u = (-4 * 2 + u * 2) 28 + 8u = (-8 + 2u) Solving 28 + 8u = -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. 28 + 8u + -2u = -8 + 2u + -2u Combine like terms: 8u + -2u = 6u 28 + 6u = -8 + 2u + -2u Combine like terms: 2u + -2u = 0 28 + 6u = -8 + 0 28 + 6u = -8 Add '-28' to each side of the equation. 28 + -28 + 6u = -8 + -28 Combine like terms: 28 + -28 = 0 0 + 6u = -8 + -28 6u = -8 + -28 Combine like terms: -8 + -28 = -36 6u = -36 Divide each side by '6'. u = -6 Simplifying u = -6
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