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Simplifying -4x2 + -16n + 9 = 0 Reorder the terms: 9 + -16n + -4x2 = 0 Solving 9 + -16n + -4x2 = 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 + -16n + -9 + -4x2 = 0 + -9 Reorder the terms: 9 + -9 + -16n + -4x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -16n + -4x2 = 0 + -9 -16n + -4x2 = 0 + -9 Combine like terms: 0 + -9 = -9 -16n + -4x2 = -9 Add '4x2' to each side of the equation. -16n + -4x2 + 4x2 = -9 + 4x2 Combine like terms: -4x2 + 4x2 = 0 -16n + 0 = -9 + 4x2 -16n = -9 + 4x2 Divide each side by '-16'. n = 0.5625 + -0.25x2 Simplifying n = 0.5625 + -0.25x2
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