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Simplifying 2r + -1 = 1 Reorder the terms: -1 + 2r = 1 Solving -1 + 2r = 1 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 2r = 1 + 1 Combine like terms: -1 + 1 = 0 0 + 2r = 1 + 1 2r = 1 + 1 Combine like terms: 1 + 1 = 2 2r = 2 Divide each side by '2'. r = 1 Simplifying r = 1
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