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Simplifying 25r2 + 4 + 20 = 0 Reorder the terms: 4 + 20 + 25r2 = 0 Combine like terms: 4 + 20 = 24 24 + 25r2 = 0 Solving 24 + 25r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-24' to each side of the equation. 24 + -24 + 25r2 = 0 + -24 Combine like terms: 24 + -24 = 0 0 + 25r2 = 0 + -24 25r2 = 0 + -24 Combine like terms: 0 + -24 = -24 25r2 = -24 Divide each side by '25'. r2 = -0.96 Simplifying r2 = -0.96 Reorder the terms: 0.96 + r2 = -0.96 + 0.96 Combine like terms: -0.96 + 0.96 = 0.00 0.96 + r2 = 0.00 The solution to this equation could not be determined.
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