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Simplifying 3r2 + 168 = 45v Reorder the terms: 168 + 3r2 = 45v Solving 168 + 3r2 = 45v Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-168' to each side of the equation. 168 + -168 + 3r2 = -168 + 45v Combine like terms: 168 + -168 = 0 0 + 3r2 = -168 + 45v 3r2 = -168 + 45v Divide each side by '3'. r2 = -56 + 15v Simplifying r2 = -56 + 15v Reorder the terms: 56 + r2 + -15v = -56 + 15v + 56 + -15v Reorder the terms: 56 + r2 + -15v = -56 + 56 + 15v + -15v Combine like terms: -56 + 56 = 0 56 + r2 + -15v = 0 + 15v + -15v 56 + r2 + -15v = 15v + -15v Combine like terms: 15v + -15v = 0 56 + r2 + -15v = 0 The solution to this equation could not be determined.
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