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Simplifying 12 = -4(1 + 2n) 12 = (1 * -4 + 2n * -4) 12 = (-4 + -8n) Solving 12 = -4 + -8n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '8n' to each side of the equation. 12 + 8n = -4 + -8n + 8n Combine like terms: -8n + 8n = 0 12 + 8n = -4 + 0 12 + 8n = -4 Add '-12' to each side of the equation. 12 + -12 + 8n = -4 + -12 Combine like terms: 12 + -12 = 0 0 + 8n = -4 + -12 8n = -4 + -12 Combine like terms: -4 + -12 = -16 8n = -16 Divide each side by '8'. n = -2 Simplifying n = -2
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