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Simplifying -3(9n + 7) = 18 Reorder the terms: -3(7 + 9n) = 18 (7 * -3 + 9n * -3) = 18 (-21 + -27n) = 18 Solving -21 + -27n = 18 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + -27n = 18 + 21 Combine like terms: -21 + 21 = 0 0 + -27n = 18 + 21 -27n = 18 + 21 Combine like terms: 18 + 21 = 39 -27n = 39 Divide each side by '-27'. n = -1.444444444 Simplifying n = -1.444444444
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