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Simplifying r2 + 121 = 0 Reorder the terms: 121 + r2 = 0 Solving 121 + r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-121' to each side of the equation. 121 + -121 + r2 = 0 + -121 Combine like terms: 121 + -121 = 0 0 + r2 = 0 + -121 r2 = 0 + -121 Combine like terms: 0 + -121 = -121 r2 = -121 Simplifying r2 = -121 Reorder the terms: 121 + r2 = -121 + 121 Combine like terms: -121 + 121 = 0 121 + r2 = 0 The solution to this equation could not be determined.
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