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Simplifying A(n) = -7 + (n + -1)(4) Multiply A * n nA = -7 + (n + -1)(4) Reorder the terms: nA = -7 + (-1 + n)(4) Reorder the terms for easier multiplication: nA = -7 + 4(-1 + n) nA = -7 + (-1 * 4 + n * 4) nA = -7 + (-4 + 4n) Combine like terms: -7 + -4 = -11 nA = -11 + 4n Solving nA = -11 + 4n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4n' to each side of the equation. -4n + nA = -11 + 4n + -4n Combine like terms: 4n + -4n = 0 -4n + nA = -11 + 0 -4n + nA = -11 Reorder the terms: 11 + -4n + nA = -11 + 11 Combine like terms: -11 + 11 = 0 11 + -4n + nA = 0 The solution to this equation could not be determined.
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