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Simplifying -4(n + -7) = 12 Reorder the terms: -4(-7 + n) = 12 (-7 * -4 + n * -4) = 12 (28 + -4n) = 12 Solving 28 + -4n = 12 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + -4n = 12 + -28 Combine like terms: 28 + -28 = 0 0 + -4n = 12 + -28 -4n = 12 + -28 Combine like terms: 12 + -28 = -16 -4n = -16 Divide each side by '-4'. n = 4 Simplifying n = 4
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