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Simplifying A(n) = 8 + (n + -1)(9) Multiply A * n nA = 8 + (n + -1)(9) Reorder the terms: nA = 8 + (-1 + n)(9) Reorder the terms for easier multiplication: nA = 8 + 9(-1 + n) nA = 8 + (-1 * 9 + n * 9) nA = 8 + (-9 + 9n) Combine like terms: 8 + -9 = -1 nA = -1 + 9n Solving nA = -1 + 9n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-9n' to each side of the equation. -9n + nA = -1 + 9n + -9n Combine like terms: 9n + -9n = 0 -9n + nA = -1 + 0 -9n + nA = -1 Reorder the terms: 1 + -9n + nA = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -9n + nA = 0 The solution to this equation could not be determined.
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