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Simplifying 12(3n + 7) = 4(3n + 2.1) + 24n Reorder the terms: 12(7 + 3n) = 4(3n + 2.1) + 24n (7 * 12 + 3n * 12) = 4(3n + 2.1) + 24n (84 + 36n) = 4(3n + 2.1) + 24n Reorder the terms: 84 + 36n = 4(2.1 + 3n) + 24n 84 + 36n = (2.1 * 4 + 3n * 4) + 24n 84 + 36n = (8.4 + 12n) + 24n Combine like terms: 12n + 24n = 36n 84 + 36n = 8.4 + 36n Add '-36n' to each side of the equation. 84 + 36n + -36n = 8.4 + 36n + -36n Combine like terms: 36n + -36n = 0 84 + 0 = 8.4 + 36n + -36n 84 = 8.4 + 36n + -36n Combine like terms: 36n + -36n = 0 84 = 8.4 + 0 84 = 8.4 Solving 84 = 8.4 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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