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Simplifying 14(x + 2) + -2x = 4(3x + 3) + -21 Reorder the terms: 14(2 + x) + -2x = 4(3x + 3) + -21 (2 * 14 + x * 14) + -2x = 4(3x + 3) + -21 (28 + 14x) + -2x = 4(3x + 3) + -21 Combine like terms: 14x + -2x = 12x 28 + 12x = 4(3x + 3) + -21 Reorder the terms: 28 + 12x = 4(3 + 3x) + -21 28 + 12x = (3 * 4 + 3x * 4) + -21 28 + 12x = (12 + 12x) + -21 Reorder the terms: 28 + 12x = 12 + -21 + 12x Combine like terms: 12 + -21 = -9 28 + 12x = -9 + 12x Add '-12x' to each side of the equation. 28 + 12x + -12x = -9 + 12x + -12x Combine like terms: 12x + -12x = 0 28 + 0 = -9 + 12x + -12x 28 = -9 + 12x + -12x Combine like terms: 12x + -12x = 0 28 = -9 + 0 28 = -9 Solving 28 = -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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