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Simplifying 13 + -2u = 9x Solving 13 + -2u = 9x Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -2u = -13 + 9x Combine like terms: 13 + -13 = 0 0 + -2u = -13 + 9x -2u = -13 + 9x Divide each side by '-2'. u = 6.5 + -4.5x Simplifying u = 6.5 + -4.5x
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