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Simplifying 6r2 + -4 = -66 Reorder the terms: -4 + 6r2 = -66 Solving -4 + 6r2 = -66 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + 6r2 = -66 + 4 Combine like terms: -4 + 4 = 0 0 + 6r2 = -66 + 4 6r2 = -66 + 4 Combine like terms: -66 + 4 = -62 6r2 = -62 Divide each side by '6'. r2 = -10.33333333 Simplifying r2 = -10.33333333 Reorder the terms: 10.33333333 + r2 = -10.33333333 + 10.33333333 Combine like terms: -10.33333333 + 10.33333333 = 0.00000000 10.33333333 + r2 = 0.00000000 The solution to this equation could not be determined.
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