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Simplifying 87 = -5(n + -7) + -8n Reorder the terms: 87 = -5(-7 + n) + -8n 87 = (-7 * -5 + n * -5) + -8n 87 = (35 + -5n) + -8n Combine like terms: -5n + -8n = -13n 87 = 35 + -13n Solving 87 = 35 + -13n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '13n' to each side of the equation. 87 + 13n = 35 + -13n + 13n Combine like terms: -13n + 13n = 0 87 + 13n = 35 + 0 87 + 13n = 35 Add '-87' to each side of the equation. 87 + -87 + 13n = 35 + -87 Combine like terms: 87 + -87 = 0 0 + 13n = 35 + -87 13n = 35 + -87 Combine like terms: 35 + -87 = -52 13n = -52 Divide each side by '13'. n = -4 Simplifying n = -4
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