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Simplifying -7r2 = 7 Solving -7r2 = 7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Divide each side by '-7'. r2 = -1 Simplifying r2 = -1 Reorder the terms: 1 + r2 = -1 + 1 Combine like terms: -1 + 1 = 0 1 + r2 = 0 The solution to this equation could not be determined.
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