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Simplifying 4r2 + -43 + 63 = 0 Reorder the terms: -43 + 63 + 4r2 = 0 Combine like terms: -43 + 63 = 20 20 + 4r2 = 0 Solving 20 + 4r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 4r2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 4r2 = 0 + -20 4r2 = 0 + -20 Combine like terms: 0 + -20 = -20 4r2 = -20 Divide each side by '4'. r2 = -5 Simplifying r2 = -5 Reorder the terms: 5 + r2 = -5 + 5 Combine like terms: -5 + 5 = 0 5 + r2 = 0 The solution to this equation could not be determined.
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