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Simplifying 9x2 + -7n + -4 = 0 Reorder the terms: -4 + -7n + 9x2 = 0 Solving -4 + -7n + 9x2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + -7n + 4 + 9x2 = 0 + 4 Reorder the terms: -4 + 4 + -7n + 9x2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -7n + 9x2 = 0 + 4 -7n + 9x2 = 0 + 4 Combine like terms: 0 + 4 = 4 -7n + 9x2 = 4 Add '-9x2' to each side of the equation. -7n + 9x2 + -9x2 = 4 + -9x2 Combine like terms: 9x2 + -9x2 = 0 -7n + 0 = 4 + -9x2 -7n = 4 + -9x2 Divide each side by '-7'. n = -0.5714285714 + 1.285714286x2 Simplifying n = -0.5714285714 + 1.285714286x2
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