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Simplifying 5v5 + 7v4 + -15v + -21 = 0 Reorder the terms: -21 + -15v + 7v4 + 5v5 = 0 Solving -21 + -15v + 7v4 + 5v5 = 0 Solving for variable 'v'. The solution to this equation could not be determined.
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