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Simplifying 5.3 = -20.3 + 8u Solving 5.3 = -20.3 + 8u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-8u' to each side of the equation. 5.3 + -8u = -20.3 + 8u + -8u Combine like terms: 8u + -8u = 0 5.3 + -8u = -20.3 + 0 5.3 + -8u = -20.3 Add '-5.3' to each side of the equation. 5.3 + -5.3 + -8u = -20.3 + -5.3 Combine like terms: 5.3 + -5.3 = 0.0 0.0 + -8u = -20.3 + -5.3 -8u = -20.3 + -5.3 Combine like terms: -20.3 + -5.3 = -25.6 -8u = -25.6 Divide each side by '-8'. u = 3.2 Simplifying u = 3.2
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