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Simplifying -2(9n + 10) + -9n = 2 + -9(11 + 3n) Reorder the terms: -2(10 + 9n) + -9n = 2 + -9(11 + 3n) (10 * -2 + 9n * -2) + -9n = 2 + -9(11 + 3n) (-20 + -18n) + -9n = 2 + -9(11 + 3n) Combine like terms: -18n + -9n = -27n -20 + -27n = 2 + -9(11 + 3n) -20 + -27n = 2 + (11 * -9 + 3n * -9) -20 + -27n = 2 + (-99 + -27n) Combine like terms: 2 + -99 = -97 -20 + -27n = -97 + -27n Add '27n' to each side of the equation. -20 + -27n + 27n = -97 + -27n + 27n Combine like terms: -27n + 27n = 0 -20 + 0 = -97 + -27n + 27n -20 = -97 + -27n + 27n Combine like terms: -27n + 27n = 0 -20 = -97 + 0 -20 = -97 Solving -20 = -97 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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