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Simplifying 3r2 + -16r2 + -7 = 5 Reorder the terms: -7 + 3r2 + -16r2 = 5 Combine like terms: 3r2 + -16r2 = -13r2 -7 + -13r2 = 5 Solving -7 + -13r2 = 5 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -13r2 = 5 + 7 Combine like terms: -7 + 7 = 0 0 + -13r2 = 5 + 7 -13r2 = 5 + 7 Combine like terms: 5 + 7 = 12 -13r2 = 12 Divide each side by '-13'. r2 = -0.9230769231 Simplifying r2 = -0.9230769231 Reorder the terms: 0.9230769231 + r2 = -0.9230769231 + 0.9230769231 Combine like terms: -0.9230769231 + 0.9230769231 = 0.0000000000 0.9230769231 + r2 = 0.0000000000 The solution to this equation could not be determined.
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