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Simplifying 87 = 3 + 7(n + 8) Reorder the terms: 87 = 3 + 7(8 + n) 87 = 3 + (8 * 7 + n * 7) 87 = 3 + (56 + 7n) Combine like terms: 3 + 56 = 59 87 = 59 + 7n Solving 87 = 59 + 7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7n' to each side of the equation. 87 + -7n = 59 + 7n + -7n Combine like terms: 7n + -7n = 0 87 + -7n = 59 + 0 87 + -7n = 59 Add '-87' to each side of the equation. 87 + -87 + -7n = 59 + -87 Combine like terms: 87 + -87 = 0 0 + -7n = 59 + -87 -7n = 59 + -87 Combine like terms: 59 + -87 = -28 -7n = -28 Divide each side by '-7'. n = 4 Simplifying n = 4
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