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Simplifying 10r2 + -21 = -4R + 6 Reorder the terms: -21 + 10r2 = -4R + 6 Reorder the terms: -21 + 10r2 = 6 + -4R Solving -21 + 10r2 = 6 + -4R Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 10r2 = 6 + 21 + -4R Combine like terms: -21 + 21 = 0 0 + 10r2 = 6 + 21 + -4R 10r2 = 6 + 21 + -4R Combine like terms: 6 + 21 = 27 10r2 = 27 + -4R Divide each side by '10'. r2 = 2.7 + -0.4R Simplifying r2 = 2.7 + -0.4R Reorder the terms: -2.7 + 0.4R + r2 = 2.7 + -0.4R + -2.7 + 0.4R Reorder the terms: -2.7 + 0.4R + r2 = 2.7 + -2.7 + -0.4R + 0.4R Combine like terms: 2.7 + -2.7 = 0.0 -2.7 + 0.4R + r2 = 0.0 + -0.4R + 0.4R -2.7 + 0.4R + r2 = -0.4R + 0.4R Combine like terms: -0.4R + 0.4R = 0.0 -2.7 + 0.4R + r2 = 0.0 The solution to this equation could not be determined.
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