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Simplifying an = an + -1 + -4 Reorder the terms: an = -1 + -4 + an Combine like terms: -1 + -4 = -5 an = -5 + an Add '-1an' to each side of the equation. an + -1an = -5 + an + -1an Combine like terms: an + -1an = 0 0 = -5 + an + -1an Combine like terms: an + -1an = 0 0 = -5 + 0 0 = -5 Solving 0 = -5 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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