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Simplifying -3(3n + 4) = 9 Reorder the terms: -3(4 + 3n) = 9 (4 * -3 + 3n * -3) = 9 (-12 + -9n) = 9 Solving -12 + -9n = 9 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -9n = 9 + 12 Combine like terms: -12 + 12 = 0 0 + -9n = 9 + 12 -9n = 9 + 12 Combine like terms: 9 + 12 = 21 -9n = 21 Divide each side by '-9'. n = -2.333333333 Simplifying n = -2.333333333
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