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