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Simplifying 2x2 + 7n + -9 = 0 Reorder the terms: -9 + 7n + 2x2 = 0 Solving -9 + 7n + 2x2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 7n + 9 + 2x2 = 0 + 9 Reorder the terms: -9 + 9 + 7n + 2x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 7n + 2x2 = 0 + 9 7n + 2x2 = 0 + 9 Combine like terms: 0 + 9 = 9 7n + 2x2 = 9 Add '-2x2' to each side of the equation. 7n + 2x2 + -2x2 = 9 + -2x2 Combine like terms: 2x2 + -2x2 = 0 7n + 0 = 9 + -2x2 7n = 9 + -2x2 Divide each side by '7'. n = 1.285714286 + -0.2857142857x2 Simplifying n = 1.285714286 + -0.2857142857x2
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