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Simplifying 4u + -6 = 6u + -20 Reorder the terms: -6 + 4u = 6u + -20 Reorder the terms: -6 + 4u = -20 + 6u Solving -6 + 4u = -20 + 6u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-6u' to each side of the equation. -6 + 4u + -6u = -20 + 6u + -6u Combine like terms: 4u + -6u = -2u -6 + -2u = -20 + 6u + -6u Combine like terms: 6u + -6u = 0 -6 + -2u = -20 + 0 -6 + -2u = -20 Add '6' to each side of the equation. -6 + 6 + -2u = -20 + 6 Combine like terms: -6 + 6 = 0 0 + -2u = -20 + 6 -2u = -20 + 6 Combine like terms: -20 + 6 = -14 -2u = -14 Divide each side by '-2'. u = 7 Simplifying u = 7
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