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Simplifying 2u + 1 = 7u + -2x + -1 Reorder the terms: 1 + 2u = 7u + -2x + -1 Reorder the terms: 1 + 2u = -1 + 7u + -2x Solving 1 + 2u = -1 + 7u + -2x Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-7u' to each side of the equation. 1 + 2u + -7u = -1 + 7u + -7u + -2x Combine like terms: 2u + -7u = -5u 1 + -5u = -1 + 7u + -7u + -2x Combine like terms: 7u + -7u = 0 1 + -5u = -1 + 0 + -2x 1 + -5u = -1 + -2x Add '-1' to each side of the equation. 1 + -1 + -5u = -1 + -1 + -2x Combine like terms: 1 + -1 = 0 0 + -5u = -1 + -1 + -2x -5u = -1 + -1 + -2x Combine like terms: -1 + -1 = -2 -5u = -2 + -2x Divide each side by '-5'. u = 0.4 + 0.4x Simplifying u = 0.4 + 0.4x
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