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Simplifying -4(4 + -1n) + 8 = -9 + 4n (4 * -4 + -1n * -4) + 8 = -9 + 4n (-16 + 4n) + 8 = -9 + 4n Reorder the terms: -16 + 8 + 4n = -9 + 4n Combine like terms: -16 + 8 = -8 -8 + 4n = -9 + 4n Add '-4n' to each side of the equation. -8 + 4n + -4n = -9 + 4n + -4n Combine like terms: 4n + -4n = 0 -8 + 0 = -9 + 4n + -4n -8 = -9 + 4n + -4n Combine like terms: 4n + -4n = 0 -8 = -9 + 0 -8 = -9 Solving -8 = -9 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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