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Simplifying 7(n + -1) + -2 = 13 Reorder the terms: 7(-1 + n) + -2 = 13 (-1 * 7 + n * 7) + -2 = 13 (-7 + 7n) + -2 = 13 Reorder the terms: -7 + -2 + 7n = 13 Combine like terms: -7 + -2 = -9 -9 + 7n = 13 Solving -9 + 7n = 13 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 7n = 13 + 9 Combine like terms: -9 + 9 = 0 0 + 7n = 13 + 9 7n = 13 + 9 Combine like terms: 13 + 9 = 22 7n = 22 Divide each side by '7'. n = 3.142857143 Simplifying n = 3.142857143
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