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Simplifying A(n) = 4 + (n + 1)(-5) Multiply A * n nA = 4 + (n + 1)(-5) Reorder the terms: nA = 4 + (1 + n)(-5) Reorder the terms for easier multiplication: nA = 4 + -5(1 + n) nA = 4 + (1 * -5 + n * -5) nA = 4 + (-5 + -5n) Combine like terms: 4 + -5 = -1 nA = -1 + -5n Solving nA = -1 + -5n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '5n' to each side of the equation. 5n + nA = -1 + -5n + 5n Combine like terms: -5n + 5n = 0 5n + nA = -1 + 0 5n + nA = -1 Reorder the terms: 1 + 5n + nA = -1 + 1 Combine like terms: -1 + 1 = 0 1 + 5n + nA = 0 The solution to this equation could not be determined.
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