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Simplifying 2r2 + n + -1 = 0 Reorder the terms: -1 + n + 2r2 = 0 Solving -1 + n + 2r2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1' to each side of the equation. -1 + n + 1 + 2r2 = 0 + 1 Reorder the terms: -1 + 1 + n + 2r2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + n + 2r2 = 0 + 1 n + 2r2 = 0 + 1 Combine like terms: 0 + 1 = 1 n + 2r2 = 1 Add '-2r2' to each side of the equation. n + 2r2 + -2r2 = 1 + -2r2 Combine like terms: 2r2 + -2r2 = 0 n + 0 = 1 + -2r2 n = 1 + -2r2 Simplifying n = 1 + -2r2
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