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Simplifying -4 = 13u Solving -4 = 13u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-13u' to each side of the equation. -4 + -13u = 13u + -13u Combine like terms: 13u + -13u = 0 -4 + -13u = 0 Add '4' to each side of the equation. -4 + 4 + -13u = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -13u = 0 + 4 -13u = 0 + 4 Combine like terms: 0 + 4 = 4 -13u = 4 Divide each side by '-13'. u = -0.3076923077 Simplifying u = -0.3076923077
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