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Simplifying 7n + (5n + 10) = 39 Reorder the terms: 7n + (10 + 5n) = 39 Remove parenthesis around (10 + 5n) 7n + 10 + 5n = 39 Reorder the terms: 10 + 7n + 5n = 39 Combine like terms: 7n + 5n = 12n 10 + 12n = 39 Solving 10 + 12n = 39 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + 12n = 39 + -10 Combine like terms: 10 + -10 = 0 0 + 12n = 39 + -10 12n = 39 + -10 Combine like terms: 39 + -10 = 29 12n = 29 Divide each side by '12'. n = 2.416666667 Simplifying n = 2.416666667
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