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Simplifying an = (2an + -1) + -1 Reorder the terms: an = (-1 + 2an) + -1 Remove parenthesis around (-1 + 2an) an = -1 + 2an + -1 Reorder the terms: an = -1 + -1 + 2an Combine like terms: -1 + -1 = -2 an = -2 + 2an Solving an = -2 + 2an Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2an' to each side of the equation. an + -2an = -2 + 2an + -2an Combine like terms: an + -2an = -1an -1an = -2 + 2an + -2an Combine like terms: 2an + -2an = 0 -1an = -2 + 0 -1an = -2 Divide each side by '-1n'. a = 2n-1 Simplifying a = 2n-1
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