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Simplifying 4n + 9 = 2(-5 + 2n) Reorder the terms: 9 + 4n = 2(-5 + 2n) 9 + 4n = (-5 * 2 + 2n * 2) 9 + 4n = (-10 + 4n) Add '-4n' to each side of the equation. 9 + 4n + -4n = -10 + 4n + -4n Combine like terms: 4n + -4n = 0 9 + 0 = -10 + 4n + -4n 9 = -10 + 4n + -4n Combine like terms: 4n + -4n = 0 9 = -10 + 0 9 = -10 Solving 9 = -10 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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