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Simplifying -5u + 6 + u + 4u = 0 Reorder the terms: 6 + -5u + u + 4u = 0 Combine like terms: -5u + u = -4u 6 + -4u + 4u = 0 Combine like terms: -4u + 4u = 0 6 + 0 = 0 6 = 0 Solving 6 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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