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Simplifying (4x + -1) * 3 = 12x Reorder the terms: (-1 + 4x) * 3 = 12x Reorder the terms for easier multiplication: 3(-1 + 4x) = 12x (-1 * 3 + 4x * 3) = 12x (-3 + 12x) = 12x Add '-12x' to each side of the equation. -3 + 12x + -12x = 12x + -12x Combine like terms: 12x + -12x = 0 -3 + 0 = 12x + -12x -3 = 12x + -12x Combine like terms: 12x + -12x = 0 -3 = 0 Solving -3 = 0 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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