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Simplifying 3(x + 4) = 2(x + -7) + x Reorder the terms: 3(4 + x) = 2(x + -7) + x (4 * 3 + x * 3) = 2(x + -7) + x (12 + 3x) = 2(x + -7) + x Reorder the terms: 12 + 3x = 2(-7 + x) + x 12 + 3x = (-7 * 2 + x * 2) + x 12 + 3x = (-14 + 2x) + x Combine like terms: 2x + x = 3x 12 + 3x = -14 + 3x Add '-3x' to each side of the equation. 12 + 3x + -3x = -14 + 3x + -3x Combine like terms: 3x + -3x = 0 12 + 0 = -14 + 3x + -3x 12 = -14 + 3x + -3x Combine like terms: 3x + -3x = 0 12 = -14 + 0 12 = -14 Solving 12 = -14 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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