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Simplifying 3(3n + -7) = -84 Reorder the terms: 3(-7 + 3n) = -84 (-7 * 3 + 3n * 3) = -84 (-21 + 9n) = -84 Solving -21 + 9n = -84 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 + 9n = -84 + 21 Combine like terms: -21 + 21 = 0 0 + 9n = -84 + 21 9n = -84 + 21 Combine like terms: -84 + 21 = -63 9n = -63 Divide each side by '9'. n = -7 Simplifying n = -7
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