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Simplifying r2 + 4 = 1 Reorder the terms: 4 + r2 = 1 Solving 4 + r2 = 1 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 + r2 = 1 + -4 Combine like terms: 4 + -4 = 0 0 + r2 = 1 + -4 r2 = 1 + -4 Combine like terms: 1 + -4 = -3 r2 = -3 Simplifying r2 = -3 Reorder the terms: 3 + r2 = -3 + 3 Combine like terms: -3 + 3 = 0 3 + r2 = 0 The solution to this equation could not be determined.
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