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Simplifying 7n + 8(7n + 7) = 434 Reorder the terms: 7n + 8(7 + 7n) = 434 7n + (7 * 8 + 7n * 8) = 434 7n + (56 + 56n) = 434 Reorder the terms: 56 + 7n + 56n = 434 Combine like terms: 7n + 56n = 63n 56 + 63n = 434 Solving 56 + 63n = 434 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-56' to each side of the equation. 56 + -56 + 63n = 434 + -56 Combine like terms: 56 + -56 = 0 0 + 63n = 434 + -56 63n = 434 + -56 Combine like terms: 434 + -56 = 378 63n = 378 Divide each side by '63'. n = 6 Simplifying n = 6
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