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Simplifying -2(2x + 9) = -4x + 9 Reorder the terms: -2(9 + 2x) = -4x + 9 (9 * -2 + 2x * -2) = -4x + 9 (-18 + -4x) = -4x + 9 Reorder the terms: -18 + -4x = 9 + -4x Add '4x' to each side of the equation. -18 + -4x + 4x = 9 + -4x + 4x Combine like terms: -4x + 4x = 0 -18 + 0 = 9 + -4x + 4x -18 = 9 + -4x + 4x Combine like terms: -4x + 4x = 0 -18 = 9 + 0 -18 = 9 Solving -18 = 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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