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Simplifying -5(7n + -5) + 4n = 0 Reorder the terms: -5(-5 + 7n) + 4n = 0 (-5 * -5 + 7n * -5) + 4n = 0 (25 + -35n) + 4n = 0 Combine like terms: -35n + 4n = -31n 25 + -31n = 0 Solving 25 + -31n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + -31n = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -31n = 0 + -25 -31n = 0 + -25 Combine like terms: 0 + -25 = -25 -31n = -25 Divide each side by '-31'. n = 0.8064516129 Simplifying n = 0.8064516129
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