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Simplifying 30 + -8n = -3(7n + 3) Reorder the terms: 30 + -8n = -3(3 + 7n) 30 + -8n = (3 * -3 + 7n * -3) 30 + -8n = (-9 + -21n) Solving 30 + -8n = -9 + -21n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21n' to each side of the equation. 30 + -8n + 21n = -9 + -21n + 21n Combine like terms: -8n + 21n = 13n 30 + 13n = -9 + -21n + 21n Combine like terms: -21n + 21n = 0 30 + 13n = -9 + 0 30 + 13n = -9 Add '-30' to each side of the equation. 30 + -30 + 13n = -9 + -30 Combine like terms: 30 + -30 = 0 0 + 13n = -9 + -30 13n = -9 + -30 Combine like terms: -9 + -30 = -39 13n = -39 Divide each side by '13'. n = -3 Simplifying n = -3
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