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Simplifying 7 = 4u + -8 Reorder the terms: 7 = -8 + 4u Solving 7 = -8 + 4u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-4u' to each side of the equation. 7 + -4u = -8 + 4u + -4u Combine like terms: 4u + -4u = 0 7 + -4u = -8 + 0 7 + -4u = -8 Add '-7' to each side of the equation. 7 + -7 + -4u = -8 + -7 Combine like terms: 7 + -7 = 0 0 + -4u = -8 + -7 -4u = -8 + -7 Combine like terms: -8 + -7 = -15 -4u = -15 Divide each side by '-4'. u = 3.75 Simplifying u = 3.75
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