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Simplifying 3(9x + 3) + -21x = 2(3x + 2) + -8 Reorder the terms: 3(3 + 9x) + -21x = 2(3x + 2) + -8 (3 * 3 + 9x * 3) + -21x = 2(3x + 2) + -8 (9 + 27x) + -21x = 2(3x + 2) + -8 Combine like terms: 27x + -21x = 6x 9 + 6x = 2(3x + 2) + -8 Reorder the terms: 9 + 6x = 2(2 + 3x) + -8 9 + 6x = (2 * 2 + 3x * 2) + -8 9 + 6x = (4 + 6x) + -8 Reorder the terms: 9 + 6x = 4 + -8 + 6x Combine like terms: 4 + -8 = -4 9 + 6x = -4 + 6x Add '-6x' to each side of the equation. 9 + 6x + -6x = -4 + 6x + -6x Combine like terms: 6x + -6x = 0 9 + 0 = -4 + 6x + -6x 9 = -4 + 6x + -6x Combine like terms: 6x + -6x = 0 9 = -4 + 0 9 = -4 Solving 9 = -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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