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Simplifying A(n) = -15 + (n + -1)(3) Multiply A * n nA = -15 + (n + -1)(3) Reorder the terms: nA = -15 + (-1 + n)(3) Reorder the terms for easier multiplication: nA = -15 + 3(-1 + n) nA = -15 + (-1 * 3 + n * 3) nA = -15 + (-3 + 3n) Combine like terms: -15 + -3 = -18 nA = -18 + 3n Solving nA = -18 + 3n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3n' to each side of the equation. -3n + nA = -18 + 3n + -3n Combine like terms: 3n + -3n = 0 -3n + nA = -18 + 0 -3n + nA = -18 Reorder the terms: 18 + -3n + nA = -18 + 18 Combine like terms: -18 + 18 = 0 18 + -3n + nA = 0 The solution to this equation could not be determined.
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