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Simplifying 3n + -7(4 + 3n) = 8 3n + (4 * -7 + 3n * -7) = 8 3n + (-28 + -21n) = 8 Reorder the terms: -28 + 3n + -21n = 8 Combine like terms: 3n + -21n = -18n -28 + -18n = 8 Solving -28 + -18n = 8 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 + -18n = 8 + 28 Combine like terms: -28 + 28 = 0 0 + -18n = 8 + 28 -18n = 8 + 28 Combine like terms: 8 + 28 = 36 -18n = 36 Divide each side by '-18'. n = -2 Simplifying n = -2
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