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Simplifying -7u + -12u + 8 = -7 Reorder the terms: 8 + -7u + -12u = -7 Combine like terms: -7u + -12u = -19u 8 + -19u = -7 Solving 8 + -19u = -7 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -19u = -7 + -8 Combine like terms: 8 + -8 = 0 0 + -19u = -7 + -8 -19u = -7 + -8 Combine like terms: -7 + -8 = -15 -19u = -15 Divide each side by '-19'. u = 0.7894736842 Simplifying u = 0.7894736842
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