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Simplifying 81 = 9n Solving 81 = 9n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-9n' to each side of the equation. 81 + -9n = 9n + -9n Combine like terms: 9n + -9n = 0 81 + -9n = 0 Add '-81' to each side of the equation. 81 + -81 + -9n = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -9n = 0 + -81 -9n = 0 + -81 Combine like terms: 0 + -81 = -81 -9n = -81 Divide each side by '-9'. n = 9 Simplifying n = 9
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