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Simplifying -2u + -20 = 2(u + 2) Reorder the terms: -20 + -2u = 2(u + 2) Reorder the terms: -20 + -2u = 2(2 + u) -20 + -2u = (2 * 2 + u * 2) -20 + -2u = (4 + 2u) Solving -20 + -2u = 4 + 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. -20 + -2u + -2u = 4 + 2u + -2u Combine like terms: -2u + -2u = -4u -20 + -4u = 4 + 2u + -2u Combine like terms: 2u + -2u = 0 -20 + -4u = 4 + 0 -20 + -4u = 4 Add '20' to each side of the equation. -20 + 20 + -4u = 4 + 20 Combine like terms: -20 + 20 = 0 0 + -4u = 4 + 20 -4u = 4 + 20 Combine like terms: 4 + 20 = 24 -4u = 24 Divide each side by '-4'. u = -6 Simplifying u = -6
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