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Simplifying 2(2x + -1) = 4x + -9 Reorder the terms: 2(-1 + 2x) = 4x + -9 (-1 * 2 + 2x * 2) = 4x + -9 (-2 + 4x) = 4x + -9 Reorder the terms: -2 + 4x = -9 + 4x Add '-4x' to each side of the equation. -2 + 4x + -4x = -9 + 4x + -4x Combine like terms: 4x + -4x = 0 -2 + 0 = -9 + 4x + -4x -2 = -9 + 4x + -4x Combine like terms: 4x + -4x = 0 -2 = -9 + 0 -2 = -9 Solving -2 = -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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